Question

7 Grupează convenabil factorii pentru a calcula rapid produsele.
Dau Coroana

Answer 1

Răspuns:

2 x 2 x 5 = 2 x (2 x 5) = 2 x 10 = 20

4 x 5 x 2 = 4 x (5 x 2) = 4 x 10 = 40

5 x 3 x 2 = 3 x (5 x 2) = 3 x 10 = 30

5 x 2 x 5 = 5 x (2 x 5) = 5 x 10 = 50

4 x 3 x 2 = 4 x (3 x 2) = 4 x 6 = 24

5 x 3 x 3 = 5 x (3 x 3) = 5 x 9 = 45

6 x 2 x 2 = 6 x (2 x 2) = 6 x 4 = 24

4 x 4 x 2 = 4 x (4 x 2) = 4 x 8 = 32

4 x 2 x 9 = (4 x 2) x 9 = 8 x 9 = 72

2 x 6 x 5 = 6 x (2 x 5) = 6 x 10 = 60

○●♡succes♡●○

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