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
23 + 20 = ______
8 × 10 = ______
81 + 20 = ______
45 + 10 = ______
59 − 10 = ______
87 − 10 = ______
50 − 10 = ______
25 − 10 = ______
65 + 10 = ______
51 + 20 = ______
91 − 10 = ______
77 − 10 = ______
63 + 10 = ______
59 + 20 = ______
11 + 10 = ______
43 + 10 = ______
74 + 10 = ______
22 + 10 = ______
28 − 10 = ______
23 + 10 = ______
