Question

Calculeaza, folosind proprietati ale impartirii si imultirii.
1. (3+6+9+12) : 3
2. 29x37:29
3. 25x38x:19:25
4. 51x14:21:17
Dau coroana !!

Answer 1

1. (3+6+9+12):3

(3:3)+(6:3)+(9:3)+(12:3)

1+2+3+4=10

2. 29×37 : 29

(29:29)×37

1×37=37

3. 25×38:19:25

(25:25)×(38:19)

1×2=2

4. 51×14:21:17

714:21:17

34:17 =2

Answer 2

Răspuns:

Explicație pas cu pas:

1. (3+6+9+12) : 3=

  3:3 +6:3+9:3+12:3=

  1+2+3+4=10

2. 29x37:29=

    29 : 29 x37=

    1x37=37

3. 25x38x:19:25=

   25 : 25 x38 :19=

    1 x2 =2

4. 51x14:21:17=

    51 :17 x 14 : 21=

    3 x2 :3 =

    3 : 3 x2=

     1x2=2

Succes !!