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 = ______
56 − 10 = ______
32 − 10 = ______
68 − 10 = ______
33 − 10 = ______
44 + 20 = ______
86 + 10 = ______
7 × 10 = ______
18 + 10 = ______
65 + 20 = ______
28 + 10 = ______
65 − 10 = ______
41 + 10 = ______
85 + 20 = ______
9 × 10 = ______
92 − 10 = ______
24 − 10 = ______
49 + 10 = ______
1 × 10 = ______
6 × 10 = ______
