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
5 × 10 = ______
3 × 10 = ______
71 − 10 = ______
84 + 20 = ______
4 × 10 = ______
75 + 10 = ______
41 − 10 = ______
14 + 10 = ______
81 − 10 = ______
75 + 20 = ______
73 + 10 = ______
61 − 10 = ______
2 × 10 = ______
9 × 10 = ______
64 + 20 = ______
79 + 10 = ______
26 − 10 = ______
78 + 10 = ______
76 + 20 = ______
21 + 20 = ______
