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 = ______
64 + 10 = ______
4 × 10 = ______
21 + 20 = ______
31 + 20 = ______
14 + 10 = ______
44 + 10 = ______
76 + 10 = ______
5 × 10 = ______
1 × 10 = ______
34 − 10 = ______
63 + 10 = ______
11 + 20 = ______
55 + 20 = ______
19 + 10 = ______
19 + 20 = ______
63 + 20 = ______
64 + 20 = ______
70 + 10 = ______
83 + 20 = ______
