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
48 + 20 = ______
4 × 10 = ______
49 + 20 = ______
66 + 20 = ______
81 − 10 = ______
11 + 10 = ______
36 + 10 = ______
51 + 20 = ______
2 × 10 = ______
68 − 10 = ______
46 + 10 = ______
57 + 10 = ______
83 + 20 = ______
23 − 10 = ______
98 − 10 = ______
93 − 10 = ______
78 + 20 = ______
88 + 20 = ______
54 − 10 = ______
81 + 20 = ______
