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 = ______
51 + 20 = ______
78 + 20 = ______
71 + 20 = ______
18 + 20 = ______
29 + 10 = ______
81 − 10 = ______
30 + 20 = ______
6 × 10 = ______
52 + 10 = ______
2 × 10 = ______
62 − 10 = ______
83 + 20 = ______
50 + 20 = ______
4 × 10 = ______
44 + 20 = ______
94 − 10 = ______
3 × 10 = ______
96 − 10 = ______
73 + 20 = ______
