+
52
+ 7
59
45
- 4
41
2 x 2 =
4
1 x 5 =
5
__ x __ = 4
1 x 4 = 4
or
2 x 2 = 4
25
+ 32
57
54
- 22
22
2 x 5 =
10
3 x 5 =
15
__ x __ = 30
6 x 5 = 30
or
3 x 10 = 30
65
+ 35
100
83
- 45
38
2 x 7 =
14
5 x 5 =
25
__ x __ = 14
2 x 7 = 14
or
1 x 14 = 14
+ 69
141
- 48
3
2 x 9 =
18
7 x 5 =
35
__ x __ = 25
5 x 5 = 25
+ 678
1,042
- 157
79
2 x 11 =
22
9 x 5 =
45
__ x __ = 100
10 x 10 = 100