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
39 − 10 = ______
55 + 20 = ______
9 × 10 = ______
38 − 10 = ______
59 − 10 = ______
21 + 20 = ______
60 − 10 = ______
61 + 10 = ______
34 + 10 = ______
67 + 10 = ______
4 × 10 = ______
37 + 10 = ______
79 + 10 = ______
81 + 10 = ______
37 + 20 = ______
59 + 20 = ______
18 + 10 = ______
5 × 10 = ______
8 × 10 = ______
62 + 20 = ______
