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
89 + 20 = ______
35 − 10 = ______
43 − 10 = ______
15 + 10 = ______
6 × 10 = ______
1 × 10 = ______
59 + 20 = ______
64 + 10 = ______
69 − 10 = ______
5 × 10 = ______
66 − 10 = ______
43 + 20 = ______
4 × 10 = ______
9 × 10 = ______
48 − 10 = ______
33 − 10 = ______
55 + 20 = ______
64 − 10 = ______
23 + 10 = ______
61 + 10 = ______
