Question

diferenta a doua nr este74. impartim nr mai mare la nr mai mic si obtinem catul 9si restul 2.aflati nr

Answer 1

a - b = 74
a : b = 9 rest 2
a = 9b + 2
9b + 2 - b = 74
8b = 74 - 2
8b = 72
b = 72 : 8
b = 9
a = 9b + 2
a = 9 x 9 + 2
a = 81 + 2
a = 83
verificam
83 - 9 = 74

Answer 2

a - b = 74
a : b = 9 rest 2
-----------------------------
a = ?        b =?

a |-----|-----|+9|
b |-----|

74 - 9 = 65  ( diferenta de un segment)
65 : 1 = 65 ( b)
65 x 2 + 9 = 139 (a)
Proba : 139 - 65 = 74 ( a-b).