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
40 − 10 = ______
51 + 10 = ______
5 × 10 = ______
51 + 20 = ______
29 + 20 = ______
7 × 10 = ______
21 − 10 = ______
14 + 20 = ______
35 + 10 = ______
36 − 10 = ______
2 × 10 = ______
84 + 20 = ______
57 + 20 = ______
71 + 20 = ______
27 + 20 = ______
4 × 10 = ______
1 × 10 = ______
11 + 20 = ______
39 − 10 = ______
42 + 10 = ______
