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
77 − 10 = ______
88 + 20 = ______
64 + 20 = ______
61 − 10 = ______
3 × 10 = ______
51 + 10 = ______
7 × 10 = ______
26 + 20 = ______
28 + 10 = ______
61 + 20 = ______
12 + 10 = ______
6 × 10 = ______
5 × 10 = ______
11 + 20 = ______
60 − 10 = ______
42 + 10 = ______
79 + 20 = ______
88 + 10 = ______
20 + 10 = ______
84 − 10 = ______
