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
5 × 10 = ______
8 × 10 = ______
1 × 10 = ______
70 − 10 = ______
7 × 10 = ______
55 + 20 = ______
86 + 20 = ______
16 + 10 = ______
69 + 20 = ______
89 + 20 = ______
4 × 10 = ______
6 × 10 = ______
33 − 10 = ______
41 + 10 = ______
39 + 20 = ______
9 × 10 = ______
3 × 10 = ______
32 + 10 = ______
42 + 20 = ______
21 + 20 = ______
