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
67 − 10 = ______
59 + 20 = ______
33 − 10 = ______
34 + 10 = ______
4 × 10 = ______
90 − 10 = ______
80 + 10 = ______
40 + 10 = ______
22 + 20 = ______
38 − 10 = ______
31 − 10 = ______
68 + 10 = ______
17 + 10 = ______
14 + 10 = ______
45 + 10 = ______
37 − 10 = ______
84 + 20 = ______
53 − 10 = ______
69 + 20 = ______
76 − 10 = ______
