Home / Worksheets / Grade 3 / Math / Grade 3 Mental Math Practice

Grade 3 Mental Math Practice

Practice mental calculation strategies for addition, subtraction, and multiplication at a Grade 3 level.

Grade 3 Math Number SenseMental Calculation
Use This Worksheet

Includes

2 Fill in the BlanksMultiple ChoiceTrue / FalseShort Answer

Standards

CCSS.MATH.CONTENT.3.NBT.A.2

Topics

mental mathadditionsubtractionmultiplicationgrade 3
7 sections · Free to use · Printable
← More Math worksheets for Grade 3

Grade 3 Mental Math Practice

Name:

Date:

Score:

Read each question carefully and solve it using mental math strategies. Try not to use a pencil and paper unless necessary!

1. What is 30 + 50?  

2. Add 25 and 15.  

3. If you have 43 apples and get 20 more, how many do you have?  

4. Subtract 20 from 70.  

5. What is 68 minus 8?  

6. You have 95 cents and spend 30 cents. How much do you have left?  

7. What is 4 groups of 5?

a

9

b

10

c

20

d

25

8. 5 x 6 = 30

T

True

F

False

9. Sarah has 3 bags of marbles. Each bag has 10 marbles. How many marbles does Sarah have in total?

10. A baker made 50 cookies. He sold 18 cookies. How many cookies does he have left?