Răspuns:
Explicație pas cu pas:
a)
84 : 4=21
8
4
4
0
Proba: 21 × 4 = 84
63 : 3 = 21
6
3
3
0
Proba: 21 × 3 = 63
==========================
b)
85 : 2=42 rest 1
8
5
4
1
Proba: 2 × 42 + 1 = 85
99 : 9 = 11
9
9
9
0
Proba: 11 × 9 = 99
==========================
c)
90 : 6 = 15
6
30
30
0
Proba: 15 × 6 = 90
78 : 5 = 15 rest 3
5
28
25
3
Proba: 5 × 15 + 3 = 78
==========================
d)
97 : 8 = 12 rest 1
8
17
16
1
Proba: 8 × 12 + 1 = 97
56 : 2 = 28
4
16
16
0
Proba: 2 × 28 = 56
==========================
e)
83 : 7 = 11 rest 6
7
13
7
6
Proba: 7 × 11 + 6 = 83
70 : 5 = 14
5
20
20
0
Proba: 5 × 14 = 70
==pav38==
