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
27 + 10 = ______
85 − 10 = ______
69 + 10 = ______
38 + 20 = ______
24 − 10 = ______
28 − 10 = ______
48 − 10 = ______
46 + 10 = ______
87 + 10 = ______
25 − 10 = ______
56 + 10 = ______
12 + 10 = ______
29 − 10 = ______
61 + 20 = ______
13 + 10 = ______
79 − 10 = ______
66 + 10 = ______
47 − 10 = ______
56 − 10 = ______
15 + 10 = ______
