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
33 − 10 = ______
69 + 10 = ______
71 + 20 = ______
30 + 20 = ______
27 + 20 = ______
5 × 10 = ______
43 + 20 = ______
55 + 20 = ______
79 + 20 = ______
27 − 10 = ______
52 + 20 = ______
39 + 10 = ______
7 × 10 = ______
21 − 10 = ______
62 + 20 = ______
83 − 10 = ______
8 × 10 = ______
66 − 10 = ______
45 + 10 = ______
43 + 10 = ______
