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
21 + 10 = ______
84 + 20 = ______
59 + 20 = ______
64 − 10 = ______
58 − 10 = ______
65 + 10 = ______
5 × 10 = ______
32 + 20 = ______
9 × 10 = ______
86 + 20 = ______
66 − 10 = ______
68 + 10 = ______
11 + 20 = ______
82 + 20 = ______
6 × 10 = ______
1 × 10 = ______
72 + 10 = ______
46 + 20 = ______
84 − 10 = ______
23 + 20 = ______
