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
4 × 10 = ______
9 × 10 = ______
42 + 10 = ______
56 + 20 = ______
89 − 10 = ______
6 × 10 = ______
71 − 10 = ______
13 + 10 = ______
79 + 20 = ______
50 + 10 = ______
46 + 10 = ______
16 + 20 = ______
49 + 10 = ______
47 + 10 = ______
2 × 10 = ______
46 + 20 = ______
77 + 20 = ______
8 × 10 = ______
57 − 10 = ______
70 + 20 = ______
