1
Balance the scale: 1 + 2 1 + ? =
2
Balance the scale: 10 + 7 5 + ? =
3
If left side 2 × 10, what does the right side equal to balance the scale? =
4
Balance the scale: 2 + __ 3 =
5
Balance the scale: 4 + __ 5 =
6
Balance the scale: 10 + 2 4 + ? =
7
Balance the scale: 2 + 3 4 + ? =
8
If left side 5 × 2, what does the right side equal to balance the scale? =
9
Balance the scale: 7 + __ 9 =
10
If left side 2 × 3, what does the right side equal to balance the scale? =
11
If left side 2 × 8, what does the right side equal to balance the scale? =
12
If left side 6 × 5, what does the right side equal to balance the scale? =
13
Balance the scale: 9 + 3 2 + ? =
14
Balance the scale: 3 + 8 7 + ? =
15
Balance the scale: 4 + __ 10 =
16
If left side 4 × 5, what does the right side equal to balance the scale? =
17
Balance the scale: 10 + 7 13 + ? =
18
Balance the scale: 2 + 4 1 + ? =
19
If left side 9 × 9, what does the right side equal to balance the scale? =