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
66 + 10 = ______
87 − 10 = ______
27 − 10 = ______
99 − 10 = ______
61 + 20 = ______
75 + 10 = ______
38 + 20 = ______
28 + 10 = ______
25 − 10 = ______
66 − 10 = ______
46 + 20 = ______
62 + 20 = ______
5 × 10 = ______
8 × 10 = ______
35 − 10 = ______
4 × 10 = ______
56 + 10 = ______
56 − 10 = ______
80 + 10 = ______
32 − 10 = ______
