Mental Math Worksheet
Recommended for 1st Grade — 5th Grade
Mental Math Worksheet
Name: ____________________Date: ____________
Instructions: Using mental strategies like making ten, doubling, and compensation to compute quickly.
20 problems
39 + 20 = ______
11 + 10 = ______
73 + 20 = ______
67 + 20 = ______
52 − 10 = ______
80 + 10 = ______
65 − 10 = ______
99 − 10 = ______
2 × 10 = ______
62 + 10 = ______
9 × 10 = ______
29 + 20 = ______
4 × 10 = ______
33 + 20 = ______
5 × 10 = ______
42 + 20 = ______
39 + 10 = ______
27 − 10 = ______
20 + 20 = ______
57 + 20 = ______
