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
82 + 20 = ______
41 + 20 = ______
18 + 10 = ______
11 + 20 = ______
44 − 10 = ______
3 × 10 = ______
79 + 20 = ______
7 × 10 = ______
86 − 10 = ______
84 + 10 = ______
53 − 10 = ______
75 − 10 = ______
65 + 20 = ______
9 × 10 = ______
43 − 10 = ______
78 − 10 = ______
8 × 10 = ______
37 − 10 = ______
89 + 20 = ______
90 − 10 = ______
