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