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
1 × 10 = ______
89 + 20 = ______
55 + 20 = ______
52 + 20 = ______
63 + 20 = ______
69 − 10 = ______
31 − 10 = ______
75 + 20 = ______
15 + 10 = ______
37 + 20 = ______
16 + 20 = ______
36 − 10 = ______
40 − 10 = ______
21 + 20 = ______
27 + 10 = ______
97 − 10 = ______
65 − 10 = ______
44 + 20 = ______
66 + 10 = ______
20 + 10 = ______
