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
21 + 10 = ______
12 + 20 = ______
5 × 10 = ______
87 − 10 = ______
70 − 10 = ______
1 × 10 = ______
89 + 10 = ______
48 − 10 = ______
8 × 10 = ______
45 + 10 = ______
59 + 10 = ______
37 + 20 = ______
27 − 10 = ______
88 + 10 = ______
35 + 20 = ______
86 + 20 = ______
2 × 10 = ______
17 + 10 = ______
21 − 10 = ______
4 × 10 = ______
