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
63 + 20 = ______
9 × 10 = ______
2 × 10 = ______
4 × 10 = ______
8 × 10 = ______
98 − 10 = ______
39 + 20 = ______
73 + 20 = ______
81 − 10 = ______
12 + 20 = ______
59 + 20 = ______
47 + 10 = ______
67 + 10 = ______
90 − 10 = ______
45 + 20 = ______
69 − 10 = ______
5 × 10 = ______
15 + 10 = ______
35 − 10 = ______
91 − 10 = ______
