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Un peu de calcul mental - Les additions
Un peu de calcul mental (Les additions)
by Devine
10 issues
1.
20 + 19 =
a
37
b
38
c
39
d
40
2.
10 + 11 =
a
20
b
21
c
22
d
23
3.
60 + 18 =
a
75
b
76
c
77
d
78
4.
40 + 16 =
a
56
b
57
c
58
d
59
5.
20 + 11 =
a
30
b
31
c
32
d
33
6.
30 + 11 =
a
44
b
43
c
41
d
42
7.
50 + 18 =
a
68
b
69
c
70
d
71
8.
50 + 17 =
a
68
b
66
c
65
d
67
9.
70 + 17 =
a
82
b
84
c
86
d
87
10.
70 + 16 =
a
81
b
83
c
86
d
89
1:c
2:b
3:d
4:a
5:b
6:c
7:a
8:d
9:d
10:c
