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
81 + 10 = ______
68 + 20 = ______
9 × 10 = ______
97 − 10 = ______
28 + 20 = ______
39 + 20 = ______
5 × 10 = ______
78 + 20 = ______
15 + 20 = ______
66 + 20 = ______
90 − 10 = ______
63 + 20 = ______
4 × 10 = ______
52 + 10 = ______
84 + 20 = ______
63 − 10 = ______
47 − 10 = ______
30 + 10 = ______
89 + 10 = ______
40 + 20 = ______
