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
29 − 10 = ______
33 − 10 = ______
12 + 20 = ______
17 + 20 = ______
74 + 20 = ______
5 × 10 = ______
98 − 10 = ______
80 + 10 = ______
15 + 10 = ______
81 + 10 = ______
34 + 20 = ______
24 + 20 = ______
3 × 10 = ______
9 × 10 = ______
99 − 10 = ______
72 + 20 = ______
71 + 20 = ______
16 + 20 = ______
64 − 10 = ______
49 + 10 = ______
