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
65 + 20 = ______
70 + 10 = ______
81 − 10 = ______
46 − 10 = ______
17 + 20 = ______
80 + 10 = ______
88 + 20 = ______
43 − 10 = ______
71 + 20 = ______
41 − 10 = ______
57 − 10 = ______
35 − 10 = ______
50 + 10 = ______
19 + 10 = ______
88 − 10 = ______
22 + 20 = ______
39 − 10 = ______
5 × 10 = ______
82 − 10 = ______
76 + 20 = ______
