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
35 + 20 = ______
9 × 10 = ______
47 − 10 = ______
79 − 10 = ______
31 − 10 = ______
52 + 10 = ______
11 + 20 = ______
13 + 20 = ______
89 − 10 = ______
22 + 10 = ______
67 − 10 = ______
38 + 10 = ______
2 × 10 = ______
85 + 10 = ______
54 + 20 = ______
45 + 10 = ______
37 + 10 = ______
81 + 20 = ______
65 + 10 = ______
34 + 10 = ______
