Question

Afla caturile folosind scaderea repetata apoi verifica folosind inmultirea 21:3,36:4,42:6,49:7,63:7,56:8,54:6,81:9

Answer 1

21-3-3-3-3-3-3-3=0
21:3=7
3×7=21
7×3=21

36-4-4-4-4-4-4-4-4-4=0
36:4=9
9×4=36
4×9=36

42-6-6-6-6-6-6-6=0
42:6=7
6×7=42
7×6=42

49-7-7-7-7-7-7-7=0
49:7=7
7×7=49
7×7=49

63-7-7-7-7-7-7-7-7-7=0
63:7=9
7×9=63
9×7=63

56-8-8-8-8-8-8-8=0
56:8=7
8×7=56
7×8=56

54-6-6-6-6-6-6-6-6-6=0
54:6=9
6×9=54
9×6=54

81-9-9-9-9-9-9-9-9-9=0
81:9=9
9×9=81
9×9=81

Dacă tu crezi că merit, astept coroana!