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
35 + 20 = ______
81 + 10 = ______
87 + 10 = ______
80 + 10 = ______
64 + 10 = ______
47 + 10 = ______
16 + 10 = ______
77 + 10 = ______
48 − 10 = ______
85 − 10 = ______
1 × 10 = ______
81 − 10 = ______
39 − 10 = ______
9 × 10 = ______
34 + 20 = ______
71 + 20 = ______
66 + 20 = ______
3 × 10 = ______
67 + 20 = ______
37 − 10 = ______
