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 = ______
57 + 20 = ______
5 × 10 = ______
74 + 20 = ______
80 + 20 = ______
63 + 20 = ______
2 × 10 = ______
95 − 10 = ______
9 × 10 = ______
88 + 10 = ______
66 − 10 = ______
21 + 10 = ______
59 + 10 = ______
7 × 10 = ______
40 − 10 = ______
61 + 20 = ______
31 − 10 = ______
83 + 10 = ______
40 + 10 = ______
34 + 10 = ______
