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
80 + 20 = ______
39 + 10 = ______
67 − 10 = ______
50 − 10 = ______
50 + 10 = ______
5 × 10 = ______
36 + 10 = ______
6 × 10 = ______
8 × 10 = ______
40 + 10 = ______
27 + 20 = ______
23 + 10 = ______
67 + 10 = ______
34 + 20 = ______
97 − 10 = ______
15 + 20 = ______
52 + 20 = ______
68 + 20 = ______
38 + 10 = ______
58 + 20 = ______
