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
9 × 10 = ______
80 − 10 = ______
16 + 10 = ______
67 − 10 = ______
6 × 10 = ______
18 + 20 = ______
5 × 10 = ______
70 − 10 = ______
78 + 10 = ______
80 + 10 = ______
3 × 10 = ______
90 − 10 = ______
87 + 20 = ______
27 + 20 = ______
71 − 10 = ______
32 + 10 = ______
67 + 10 = ______
17 + 10 = ______
47 + 20 = ______
83 − 10 = ______
