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
5 × 10 = ______
15 + 20 = ______
3 × 10 = ______
35 + 10 = ______
19 + 20 = ______
57 + 20 = ______
64 − 10 = ______
44 + 20 = ______
83 − 10 = ______
87 + 10 = ______
45 − 10 = ______
89 + 20 = ______
37 − 10 = ______
49 + 20 = ______
4 × 10 = ______
87 + 20 = ______
98 − 10 = ______
6 × 10 = ______
42 − 10 = ______
42 + 20 = ______
