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
56 + 20 = ______
88 + 10 = ______
17 + 20 = ______
7 × 10 = ______
72 + 10 = ______
57 + 10 = ______
42 + 10 = ______
43 + 20 = ______
70 − 10 = ______
24 + 10 = ______
5 × 10 = ______
78 + 10 = ______
14 + 10 = ______
45 + 10 = ______
18 + 20 = ______
55 − 10 = ______
83 + 10 = ______
8 × 10 = ______
21 − 10 = ______
3 × 10 = ______
