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
90 − 10 = ______
84 − 10 = ______
59 + 10 = ______
68 − 10 = ______
58 + 10 = ______
7 × 10 = ______
78 + 20 = ______
89 − 10 = ______
82 + 10 = ______
80 + 10 = ______
41 + 20 = ______
82 − 10 = ______
20 + 10 = ______
13 + 20 = ______
72 + 20 = ______
78 + 10 = ______
54 + 10 = ______
3 × 10 = ______
40 − 10 = ______
35 + 20 = ______
