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
56 + 20 = ______
63 − 10 = ______
34 − 10 = ______
39 − 10 = ______
65 + 10 = ______
59 + 20 = ______
78 + 10 = ______
50 − 10 = ______
52 − 10 = ______
37 + 20 = ______
75 + 20 = ______
5 × 10 = ______
66 + 20 = ______
2 × 10 = ______
9 × 10 = ______
61 + 20 = ______
37 − 10 = ______
70 + 10 = ______
21 − 10 = ______
83 − 10 = ______
