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
18 + 20 = ______
31 + 10 = ______
38 − 10 = ______
39 + 20 = ______
2 × 10 = ______
40 + 10 = ______
13 + 10 = ______
27 − 10 = ______
41 + 20 = ______
53 + 20 = ______
7 × 10 = ______
72 + 20 = ______
17 + 10 = ______
14 + 20 = ______
5 × 10 = ______
4 × 10 = ______
89 − 10 = ______
22 + 10 = ______
62 + 10 = ______
75 − 10 = ______
