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