quarta-feira, 18 de novembro de 2020

GINÁSTICA MENTAL

 




VAMOS EXERCITAR O CÁLCULO MENTAL.

Se observares com atenção, vais conseguir resolver  estas 40 operações sem usar os algoritmos.


3456 + 1 =

3456 + 10 =

3456 + 100 =

3456 + 1000 =

3456 + 11 =

3456 + 110 =

3456 + 1100 =

3456 + 111 =

3456 + 1110 =

3456 + 1111 =

2345 + 4 =

2345 + 34 =

2345 + 234 =

2345 + 1234 =

2345 + 1 =

2345 + 21 =

2345 + 321 =

2345 + 4321 =

2345 + 5432 =

2345 + 6543 =

7654 – 1 =

7654 – 10 =

7654 – 100 =

7654 – 1000 =

7654 – 11 =

7654 – 110 =

7654 – 1100 =

7654 – 111 =

7654 – 1110 =

7654 – 1111 =

2888 – 8 =

2888 – 80 =

2888 – 800 =

2888 – 88 =

2888 – 888 =

2888 – 4 =

2888 – 40 =

2888 – 400 =

2888 – 44 =

2888 – 444 =

É melhor escreveres primeiro com lápis num caderno e verificares com cuidado, uma por uma.

Depois copias com muita atenção para os comentários do blogue. 

Às 15 horas, publicarei aqui  as soluções e deves corrigir, com muita atenção, o que escreveste nos dois sítios - no caderno e no blogue.


24 comentários:

  1. 3456+1=3457
    3456+10=3466
    3456+100=3556
    3456+1000=4456
    3456+11=3467
    3456+110=3566
    3456+1100=4556
    3456+111=3567
    3456+1110=4566
    3456+1111=4567

    2345+4=2349
    2345+34=2379
    2345+234=2579
    2345+1234=3579
    2345+1=2346
    2345+21=2366
    2345+321=2666
    2345+4321=6666
    2345+5432=7777
    2345+6543=8888

    7654-1=7653
    7654-10=7644
    7654-100=7554
    7654-1000=6654
    7654-11=7643
    7654-110=7543
    7654-1100=6554
    7654-111=7543
    7654-1110=6544
    7654-1111=6543

    2888-8=2880
    2888-80=2808
    2888-800=2088
    2888-88=2800
    2888-888=2000
    2888-4=2884
    2888-40=2848
    2888-400=2488
    2888-44=2844
    2888-444=2444

    ResponderEliminar
  2. 3456 + 1 =3457

    3456 + 10 =3466

    3456 + 100 =3556

    3456 + 1000 =4456

    3456 + 11 =3466

    3456 + 110 =3566

    3456 + 1100 =4556

    3456 + 111 =3567

    3456 + 1110 =4566

    3456 + 1111 =4567

    -------------------------------------

    2345 + 4 =2349

    2345 + 34 =2379

    2345 + 234 =2579

    2345 + 1234 = 3579

    2345 + 1 = 2346

    2345 + 21 =2366

    2345 + 321 =2666

    2345 + 4321 =6666

    2345 + 5432 =7777

    2345 + 6543 =8888

    ---------------------------------------

    7654 – 1 =7653

    7654 – 10 =7644

    7654 – 100 =7554

    7654 – 1000 =6654

    7654 – 11 =7643

    7654 – 110 =7544

    7654 – 1100 =6554

    7654 – 111 =7543

    7654 – 1110 =6544

    7654 – 1111 =6543

    ------------------------------------------
    2888 – 8 =2880

    2888 – 80 =2808

    2888 – 800 =2088

    2888 – 88 =2800

    2888 – 888 =2000

    2888 – 4 =2884

    2888 – 40 =2848

    2888 – 400 =2488

    2888 – 44 =2844

    2888 – 444 =2444

    ResponderEliminar
  3. Bom dia professor e colegas sou o Alecsandru Stefan Spanache.
    3456+1=3457 Segunda parte das contas de mais.
    3456+10=3466 2345+4=2349
    3456+100=3567 2345+34=2379
    3456+1000=4567 2345+234=2579
    3456+11=3467 2345+1234=3579
    3456+110=3566 2345+1=2346
    3456+111=3567 2345+21=2366
    3456+1110=4566 2345+321=2666
    3456+1111=4567 2345+4321=6666
    2345+5432=7777
    2345+6543=8888

    7654–1=7653 2888–8=2880
    7654–10=7644 2888–80=2808
    7654–100=7554 2888–800=2088
    7654–1000=6654 2888–88=2800
    7654–11=7643 2888–888=2000
    7654–110=7544 2888–4=2884
    7654–1100=6554 2888–40=2848
    7654–111=7543 2888–400=2488
    7654–1110=6544 2888–44=2844
    7654–1111=6543 2888–444=2444

    ResponderEliminar
  4. Bom dia professor,
    fiz as operações sem usar os algoritmos:

    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 3556
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4556
    3456 + 111 = 3567
    3456 + 1110 = 4566
    3456 + 1111 = 4567

    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888

    7654 – 1 = 7653
    7654 – 10 = 7644
    7654 – 100 = 7554
    7654 – 1000 = 6654
    7654 – 11 = 7643
    7654 – 110 = 7544
    7654 – 1100 = 6554
    7654 – 111 = 7543
    7654 – 1110 = 6544

    2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 = 2088
    2888 – 88 = 2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444


    ResponderEliminar
  5. 3456+1=3457 2345+4=2349 7654-1000=6654 2888-88=2800
    3456+10=3466 2345+34=2379 7654-11=7643 2888-4=2884
    3456+100=3556 2345+234=2579 7654-110=7543 2888-40=2848
    3456+1000=4456 2345+1234=3579 7654-1100=6554 2888-400=2488
    3456+11=3467 2345+1=2346 7654-111=7543 2888-44=2844
    3456+110=3566 2345+21=2366 7654-1110=6544 2888-444=2444
    3456+1100=4556 2345+321=2666 7654-1111=6543
    3456+111=3567 2345+4321=6666
    3456+1110=4566 2345+5432=7777
    3456+1111=4567 2345+6543=8888
    7654-1=7653 2888-8=2880
    7654-10=7643 2888-80=2800
    7654-100=7543 2888-800=2000

    ResponderEliminar
  6. 3456+1=3457 2345+4=2349 7654-1000=6654 2888-88=2800
    3456+10=3466 2345+34=2379 7654-11=7643 2888-4=2884
    3456+100=3556 2345+234=2579 7654-110=7543 2888-40=2848
    3456+1000=4456 2345+1234=3579 7654-1100=6554 2888-400=2488
    3456+11=3467 2345+1=2346 7654-111=7543 2888-44=2844
    3456+110=3566 2345+21=2366 7654-1110=6544 2888-444=2444
    3456+1100=4556 2345+321=2666 7654-1111=6543
    3456+111=3567 2345+4321=6666
    3456+1110=4566 2345+5432=7777
    3456+1111=4567 2345+6543=8888
    7654-1=7653 2888-8=2880
    7654-10=7643 2888-80=2800
    7654-100=7543 2888-800=2000

    ResponderEliminar


  7. 3456 + 1 = 3457
    3456 + 1O = 3466
    3456 + 1OO = 3556
    3456 + 1OOO = 4456
    3456 + 11 = 3467
    3456 + 11O = 3656
    3456 + 11OO = 4556
    3456 + 111 = 3567
    3456 + 111O = 4566
    3456 + 1111 = 4567



    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888

    7654 - 1 = 7653
    7654 - 1O = 7643
    7654 - 1OO = 7543
    7654 - 1OOO = 6654
    7654 - 11 = 7643
    7654 - 11O = 7544
    7654 - 111 = 7543
    7654 - 111O = 6544
    7654 - 1111 = 6543

    2888 - 8 = 288O
    2888 - 8O = 28O8
    2888 - 8OO = 2O88
    2888 - 88 = 28OO
    2888 - 888 = 2OOO
    2888 - 4 = 2884
    2888 - 4O = 2848
    2888 - 4OO = 2488
    2888 - 44 = 2844
    2888 - 444 = 2444

    ResponderEliminar


  8. 3456 + 1 = 3457
    3456 + 1O = 3466
    3456 + 1OO = 3556
    3456 + 1OOO = 4456
    3456 + 11 = 3467
    3456 + 11O = 3656
    3456 + 11OO = 4556
    3456 + 111 = 3567
    3456 + 111O = 4566
    3456 + 1111 = 4567



    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888

    7654 - 1 = 7653
    7654 - 1O = 7643
    7654 - 1OO = 7543
    7654 - 1OOO = 6654
    7654 - 11 = 7643
    7654 - 11O = 7544
    7654 - 111 = 7543
    7654 - 111O = 6544
    7654 - 1111 = 6543

    2888 - 8 = 288O
    2888 - 8O = 28O8
    2888 - 8OO = 2O88
    2888 - 88 = 28OO
    2888 - 888 = 2OOO
    2888 - 4 = 2884
    2888 - 4O = 2848
    2888 - 4OO = 2488
    2888 - 44 = 2844
    2888 - 444 = 2444

    ResponderEliminar
  9. 3456 + 1 =3457

    3456 + 10 =3466

    3456 + 100 =3556

    3456 + 1000 =4456

    3456 + 11 =3467

    3456 + 110 =3566

    3456 + 1100 =4556

    3456 + 111 =3567

    3456 + 1110 =4566

    3456 + 1111 =4567

    2345 + 4 =2349

    2345 + 34 =2379

    2345 + 234 =2579

    2345 + 1234 =3579

    2345 + 1 =2346

    2345 + 21 =2366

    2345 + 321 =2666

    2345 + 4321 =6666

    2345 + 5432 =7777

    2345 + 6543 =8888

    7654 – 1 =7653

    7654 – 10 =7554

    7654 – 100 =7554

    7654 – 1000 =6654

    7654 – 11 =7643

    7654 – 110 =7544

    7654 – 1100 =6554

    7654 – 111 =7543

    7654 – 1110 =6544

    7654 – 1111 =6543

    2888 – 8 =2880

    2888 – 80 =2808

    2888 – 800 =2088

    2888 – 88 =2800

    2888 – 888 =2000

    2888 – 4 =2884

    2888 – 40 =2848

    2888 – 400 =2488

    2888 – 44 =2844

    2888 – 444 =2444

    Romeu Rodrigues

    ResponderEliminar
  10. Maria
    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 35564
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4556
    3456 + 111 = 3567
    3456 + 1110 = 4566
    3456 + 1111 = 4567
    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2689
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888
    7654 – 1 =¬¬ 7644
    7654 – 10 = 7554
    7654 – 100 = 7554
    7654 – 1000 = 6654
    7654 – 11 = 7643
    7654 – 110 = 7544
    7654 – 1100 = 6554
    7654 – 111 = 7643
    7654 – 1110 = 6544
    7654 – 1111 =6543 2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 =2088
    2888 – 88 = 2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444


    ResponderEliminar
  11. Bom dia professor

    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 3556
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4556
    3456 + 111 = 3567
    3456 + 1110 = 4566
    3456 + 1111 = 4567

    2345 + 4 =2349
    2345 + 34 =2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888

    7654 – 1 =7653
    7654 – 10 = 7644
    7654 – 100 = 7554
    7654 – 1000 = 6654
    7654 – 11 = 7643
    7654 – 110 = 7544
    7654 – 1100 = 6554
    7654 – 111 = 7543
    7654 – 1110 = 6544
    7654 – 1111 = 6543



    2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 = 2088
    2888 – 88 = 2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444

    ResponderEliminar
  12. Bom dia professor Ricardo.
    Depois de ter feito a lápis aqui estão as respostas:

    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 3556
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4556
    3456 + 111 = 3567
    3456 + 1110 = 4566
    3456 + 1111 = 4567
    7654 – 1 = 7653
    7654 – 10 = 7644
    7654 – 100 = 7554
    7654 – 1000 = 6654
    7654 – 11 = 7643
    7654 – 110 = 7544
    7654 – 1100 = 6554
    7654 – 111 = 7543
    7654 – 1110 = 6544
    7654 – 1111 = 6543
    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888
    2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 = 2088
    2888 – 88 = 2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444

    ResponderEliminar
  13. 3456 + 1 = 3457
    3456 + 10 =3466
    3456 + 100 =3556
    3456 + 1000 =4456
    3456 + 11 =3467
    3456 + 110 =3566
    3456 + 1100 =4556
    3456 + 111 =3567
    3456 + 1110 =4566
    3456 + 1111 =4567

    7654 – 1 =7653
    7654 – 10 =7644
    7654 – 100 =7554
    7654 – 1000 =6654
    7654 – 11 =7643
    7654 – 110 =7544
    7654 – 1100 =6554
    7654 – 111 =7543
    7654 – 1110 =6544
    7654 – 1111 =6543

    2345 + 4 =2349
    2345 + 34 =2379
    2345 + 234 =2579
    2345 + 1234 =3579
    2345 + 1 =2346
    2345 + 21 =2366
    2345 + 321 =2666
    2345 + 4321 =6666
    2345 + 5432 =7777
    2345 + 6543 =8888

    2888 – 8 =2880
    2888 – 80 =2808
    2888 – 800 =2088
    2888 – 88 =2800
    2888 – 888 =2000
    2888 – 4 =2884
    2888 – 40 =2848
    2888 – 400 =2488
    2888 – 44 =2844
    2888 – 444 =2444

    Beijinhos: Sara Palas

    ResponderEliminar
  14. 3457;3466;3556;4456;3467;3566;4556;3567;4566;4567.
    2349;2379;2579;3579;2346;2366;2666;6666;7777;8888.
    7653;7644;7554;6654;7643;7544;6554;7543;6544;6543.
    2880;2808;2088;2088;2800;2000;2884;2848;2844;2444.

    Carlota Rolino

    ResponderEliminar
  15. 3456 + 1 =3457

    3456 + 10 =3466

    3456 + 100 =3556

    3456 + 1000 =4456

    3456 + 11 =3467

    3456 + 110 =3566

    3456 + 1100 =4556

    3456 + 111 =3567

    3456 + 1110 =4566

    3456 + 1111 =4567

    2345 + 4 =2349

    2345 + 34 =2379

    2345 + 234 =2579

    2345 + 1234 =3579

    2345 + 1 =2346

    2345 + 21 =2366

    2345 + 321 =2666

    2345 + 4321 =6666

    2345 + 5432 =7777

    2345 + 6543 =8888

    7654 – 1 =7653

    7654 – 10 =7644

    7654 – 100 =7554

    7654 – 1000 =6654

    7654 – 11 =7643

    7654 – 110 =7544

    7654 – 1100 =6554

    7654 – 111 =7543

    7654 – 1110 =6544

    7654 – 1111 =6543

    2888 – 8 =2880

    2888 – 80 =2808

    2888 – 800 =2088

    2888 – 88 =2800

    2888 – 888 =2000

    2888 – 4 =2884

    2888 – 40 =2888

    2888 – 400 =2488

    2888 – 44 =2844

    2888 – 444 =2444

    ResponderEliminar
  16. 3456 + 1 =3457

    3456 + 10 =3466

    3456 + 100 =3556

    3456 + 1000 =4456

    3456 + 11 =3467

    3456 + 110 =3566

    3456 + 1100 =4456

    3456 + 111 =3567

    3456 + 1110 =4566

    3456 + 1111 =4567

    2345 + 4 =2349

    2345 + 34 =2379

    2345 + 234 =2579

    2345 + 1234 =3579

    2345 + 1 =2346

    2345 + 21 =2366

    2345 + 321 =2666

    2345 + 4321 =6666

    2345 + 5432 =7777

    2345 + 6543 =8888

    7654 – 1 =7653

    7654 – 10 =7644

    7654 – 100 =7554

    7654 – 1000 =6654

    7654 – 11 =7643

    7654 – 110 =7544

    7654 – 1100 =6554

    7654 – 111 =7543

    7654 – 1110 =6544

    7654 – 1111 =6543

    2888 – 8 =2880

    2888 – 80 =2808

    2888 – 800 =2088

    2888 – 88 =2008

    2888 – 888 =2000

    2888 – 4 =2884

    2888 – 40 =2848

    2888 – 400 =2488

    2888 – 44 =2844

    2888 – 444 =2444


    Carolina

    ResponderEliminar
  17. Vasco Alves

    3456+1=3457
    3456+10=3466
    3456+100=3556
    3456+1000=4456
    3456+11=3467
    3456+110=3566
    3456+1100=4556
    3456+111=3567
    3456+1110=4566
    3456+1111=4567

    2345+4=2349
    2345+34=2379
    2345+234=2579
    2345+1234=3579
    2345+1=2346
    2345+21=2366
    2345+321=2666
    2345+4321=6666
    2345+5432=7777
    2345+6543=8888


    7654-1=7653
    7654-10=7644
    7654-100=7554
    7654-1000=6654
    7654-11=7643
    7654-110=7544
    7654-1100=6554
    7654-111=7543
    7654-1110=6544
    7654-1111=5643

    2888-8=2880
    2888-80=2808
    2888-800=2088
    2888-88=2800
    2888-888=2000
    2888-4=2884
    2888-40=2848
    2888-400=2488
    2888-44=2844
    2888-444=2444

    ResponderEliminar
  18. 3457
    3466
    3556
    4456
    3467
    3566
    4556
    3567
    4566
    4567

    2349
    2379
    2579
    3579
    2346
    2366
    2666
    6666
    7777
    8888

    7653
    7644
    7554
    6654
    7643
    7544
    6554
    7543
    6544
    6543

    2880
    2808
    2088
    2800
    2000
    2884
    2848
    2488
    2844
    2444

    ResponderEliminar
  19. Afonso Amorim

    3456+1=3457 2345+4=2349
    3456+10=3466 2345+34=2379
    3456+100=3556 2345+234=2579
    3456+1000=4456 2345+1234=3579
    3456+11=3467 2345+1=2346
    3456+110=3566 2345+21=2366
    3456+1100=4556 2345+321=2666
    3456+111=3567 2345+4321=6666
    3456+1110=4566 2345+5432=7777
    3456+1111=4567 2345+6543=8888
    _____________________________________________________________________________

    7654-1=7653 2888-8=2880
    7654-10=7644 2888-80=2808
    7654-100=7554 2888-800=2088
    7654-1000=6654 2888-88=2800
    7654-11=7643 2888-888=2000
    7654-110=7544 2888-4=2884
    7654-1100=6554 2888-40=2848
    7654-111=7543 2888-400=2488
    7654-1110=6544 2888-44=2844
    7654-1111=6543 2888-444=2444







































    ResponderEliminar
  20. Olá professor foi difícil escrever no computador.

    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 3556
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4456
    3456 + 111 = 3567
    3456 + 1110 =4566
    3456 + 1111 =4567
    2345 + 4 = 2349
    2345 + 34 =2379
    2345 + 234 =2579
    2345 + 1234 =3579
    2345 + 1 =2346
    2345 + 21 =2366
    2345 + 321 =2666
    2345 + 4321 =6666
    2345 + 5432 =7777
    2345 + 6543 =8888
    7654 – 1 = 7653
    7654 – 10 = 7644
    7654 – 100 = 7554
    7654 – 1000 =6654
    7654 – 11 = 7643
    7654 – 110 =7544
    7654 – 1100 = 6554
    7654 – 111 = 7543
    7654 – 1110 =6544
    7654 – 1111 = 6543
    2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 = 2088
    2888 – 88 =2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444

    ResponderEliminar
  21. Rafael Alves

    3456 + 1 = 3457
    3456 + 10 = 3466
    3456 + 100 = 3556
    3456 + 1000 = 4456
    3456 + 11 = 3467
    3456 + 110 = 3566
    3456 + 1100 = 4556
    3456 + 111= 3567
    3456 + 1110 = 4566
    3456 + 1111 = 4567

    2345 + 4 = 2349
    2345 + 34 = 2379
    2345 + 234 = 2579
    2345 + 1234 = 3579
    2345 + 1 = 2346
    2345 + 21 = 2366
    2345 + 321 = 2666
    2345 + 4321 = 6666
    2345 + 5432 = 7777
    2345 + 6543 = 8888

    7654 – 1 = 7653
    7654 – 10 = 7644
    7654 – 100 = 7554
    7654 – 1000 = 6654
    7654 – 11 = 7643
    7654 – 110 = 7544
    7654 – 1100 = 6554
    7654 – 111 = 7543
    7654 – 1110 = 6544
    7654 – 1111 = 6543


    2888 – 8 = 2880
    2888 – 80 = 2808
    2888 – 800 = 2088
    2888 – 88 = 2800
    2888 – 888 = 2000
    2888 – 4 = 2884
    2888 – 40 = 2848
    2888 – 400 = 2488
    2888 – 44 = 2844
    2888 – 444 = 2444




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