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
1 × 10 = ______
2 × 10 = ______
44 − 10 = ______
21 + 20 = ______
85 − 10 = ______
44 + 20 = ______
94 − 10 = ______
9 × 10 = ______
31 + 10 = ______
84 + 20 = ______
87 + 20 = ______
8 × 10 = ______
72 + 10 = ______
33 + 20 = ______
42 + 10 = ______
88 + 20 = ______
4 × 10 = ______
26 + 20 = ______
46 + 20 = ______
5 × 10 = ______
