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
51 − 10 = ______
83 + 10 = ______
38 − 10 = ______
36 − 10 = ______
66 + 20 = ______
16 + 20 = ______
56 + 10 = ______
45 + 10 = ______
4 × 10 = ______
52 + 10 = ______
79 + 20 = ______
33 + 10 = ______
27 − 10 = ______
83 + 20 = ______
89 + 10 = ______
44 − 10 = ______
9 × 10 = ______
70 + 10 = ______
55 + 10 = ______
21 − 10 = ______
