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
57 − 10 = ______
29 + 10 = ______
57 + 20 = ______
21 − 10 = ______
79 + 20 = ______
76 + 20 = ______
48 − 10 = ______
73 + 20 = ______
35 − 10 = ______
21 + 10 = ______
2 × 10 = ______
59 + 10 = ______
22 + 20 = ______
41 − 10 = ______
56 − 10 = ______
63 + 20 = ______
8 × 10 = ______
35 + 10 = ______
11 + 20 = ______
75 + 20 = ______
