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
51 + 10 = ______
19 + 10 = ______
45 + 20 = ______
61 − 10 = ______
12 + 20 = ______
76 − 10 = ______
65 + 20 = ______
93 − 10 = ______
73 + 10 = ______
79 + 20 = ______
21 − 10 = ______
25 − 10 = ______
27 + 20 = ______
57 + 10 = ______
55 + 10 = ______
74 − 10 = ______
8 × 10 = ______
78 + 10 = ______
38 + 10 = ______
5 × 10 = ______
