1
Balance the scale: 1 + __ 3 =
2
Balance the scale: 6 + 10 13 + ? =
3
Balance the scale: 2 + 7 5 + ? =
4
Balance the scale: 6 + 9 7 + ? =
5
If left side 8 × 10, what does the right side equal to balance the scale? =
6
Balance the scale: 8 + 1 1 + ? =
7
Balance the scale: 2 + __ 6 =
8
Balance the scale: 2 + __ 7 =
9
If left side 3 × 7, what does the right side equal to balance the scale? =
10
Balance the scale: 8 + 4 11 + ? =
11
If left side 10 × 2, what does the right side equal to balance the scale? =
12
Balance the scale: 4 + __ 6 =
13
Balance the scale: 7 + 1 2 + ? =
14
If left side 4 × 2, what does the right side equal to balance the scale? =
15
Balance the scale: 5 + 4 2 + ? =
16
If left side 5 × 7, what does the right side equal to balance the scale? =
17
If left side 4 × 5, what does the right side equal to balance the scale? =
18
Balance the scale: 1 + __ 6 =
19
If left side 6 × 4, what does the right side equal to balance the scale? =
20
Balance the scale: 7 + 6 3 + ? =