Math Practice Topic: Inverse Equations 1

Description: Relate addition to subtraction by studying inverse equations. For example, since 8+6=14, 14-6=8.

Adaptive Learning Progression: The operands get larger as the rating increases.

Sample Levels (out of 4)

Complete the equation that is the inverse of the original.

1.
An inverse equation of 4 + 3 = 7 is
2.
Since 3 + 4 = 7,   7 - 3 =
3.
An inverse equation of 5 - 3 = 2 is

Complete the equation that is the inverse of the original.

1.
Since 5 - 2 = 3,   3 + 2 =
2.
Since 9 + 10 = 19,   19 - 10 =
3.
An inverse equation of 9 + 5 = 14 is
4.
An inverse equation of 9 - 4 = 5 is
5.
An inverse equation of 1 + 7 = 8 is
6.
Since 5 + 7 = 12,   12 - 7 =

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