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
77 + 20 = ______
8 × 10 = ______
14 + 20 = ______
66 + 10 = ______
1 × 10 = ______
23 + 20 = ______
44 − 10 = ______
86 + 10 = ______
95 − 10 = ______
28 − 10 = ______
64 + 10 = ______
84 + 10 = ______
61 + 20 = ______
18 + 10 = ______
29 − 10 = ______
20 + 20 = ______
16 + 10 = ______
21 + 20 = ______
58 + 10 = ______
28 + 20 = ______
