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
39 + 10 = ______
49 − 10 = ______
48 − 10 = ______
36 − 10 = ______
57 + 20 = ______
85 + 10 = ______
52 + 20 = ______
99 − 10 = ______
61 + 20 = ______
50 + 20 = ______
6 × 10 = ______
87 − 10 = ______
26 + 20 = ______
5 × 10 = ______
45 + 10 = ______
97 − 10 = ______
75 + 20 = ______
44 − 10 = ______
48 + 20 = ______
21 − 10 = ______
