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
3 × 10 = ______
8 × 10 = ______
21 + 10 = ______
1 × 10 = ______
28 − 10 = ______
12 + 10 = ______
83 + 20 = ______
18 + 20 = ______
69 + 10 = ______
75 + 10 = ______
35 + 20 = ______
7 × 10 = ______
24 − 10 = ______
44 + 10 = ______
71 − 10 = ______
64 + 20 = ______
31 − 10 = ______
5 × 10 = ______
17 + 20 = ______
81 + 20 = ______
