Question

5. Află câturile, folosind scăderea repetată, apoi verifică, folosind înmulțirea. a) 21:3 c) 63: 7 b) 42:6 36:4 49:7 56:8 ​

Answer 1

Răspuns:

21:3=7

21-3-3-3-3-3-3-3=0

7x3=21

36:4=9

36-4-4-4-4-4-4-4-4-4=0

9x4=36

42:6=7

42-6-6-6-6-6-6-6=0

7x6=42

49:7=7

49-7-7-7-7-7-7-7=0

7x7=49

63:7=9

63-7-7-7-7-7-7-7-7-7=0

9x7=63

56:8=7

56-8-8-8-8-8-8-8=0

7x8=56