Solve-the-Sum

Students solve horizontal equations in which the sum is provided and one addend plus 3 must be found. This worksheet helps learners strengthen both forward and backward addition thinking. Teachers can use this to check comprehension of how addition equations can be manipulated while still reinforcing +3 fluency.

Curriculum Skills

Addition with provided sums

Reverse addition reasoning

Fact fluency for +3

Strengthening mental math and flexibility

This worksheet is part of our Addition Facts With 2 and 3 Worksheets collection.