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
81 + 20 = ______
58 + 10 = ______
87 + 10 = ______
29 + 20 = ______
26 − 10 = ______
74 − 10 = ______
28 + 20 = ______
7 × 10 = ______
4 × 10 = ______
66 + 20 = ______
23 + 10 = ______
53 − 10 = ______
3 × 10 = ______
42 + 20 = ______
19 + 20 = ______
64 + 20 = ______
93 − 10 = ______
17 + 20 = ______
71 − 10 = ______
8 × 10 = ______
