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
1 × 10 = ______
99 − 10 = ______
62 + 20 = ______
88 + 10 = ______
63 + 20 = ______
52 + 10 = ______
61 + 10 = ______
79 − 10 = ______
64 − 10 = ______
13 + 10 = ______
2 × 10 = ______
40 − 10 = ______
21 + 20 = ______
4 × 10 = ______
8 × 10 = ______
45 − 10 = ______
58 + 10 = ______
87 + 20 = ______
27 − 10 = ______
17 + 10 = ______
