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
42 + 10 = ______
5 × 10 = ______
2 × 10 = ______
45 + 10 = ______
7 × 10 = ______
21 − 10 = ______
1 × 10 = ______
25 + 10 = ______
65 − 10 = ______
94 − 10 = ______
4 × 10 = ______
8 × 10 = ______
25 + 20 = ______
3 × 10 = ______
90 − 10 = ______
49 − 10 = ______
62 + 20 = ______
70 + 10 = ______
84 + 20 = ______
79 + 10 = ______
