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
2 × 10 = ______
63 + 20 = ______
89 − 10 = ______
56 + 20 = ______
5 × 10 = ______
22 − 10 = ______
12 + 10 = ______
50 − 10 = ______
54 + 10 = ______
37 + 20 = ______
4 × 10 = ______
75 − 10 = ______
7 × 10 = ______
3 × 10 = ______
52 − 10 = ______
31 − 10 = ______
88 − 10 = ______
39 − 10 = ______
67 + 20 = ______
69 − 10 = ______