Mental Math
Master mental math step by step, from basic concepts to advanced problem solving
Common Core: 3.NBT — Number & Operations in Base TenWatch & Learn
Learning Path
Start with Lesson 1 and work your way through!
1
Break Apart Strategy
BeginnerBreak numbers into parts
Break apart addendsAdd in parts
2
Compensation Strategy
EasyAdjust numbers to make easy math
Round to friendly numbersCompensate
3
Multiplication Patterns
EasyUse patterns to multiply mentally
Find patternsMultiply by 10, 100
4
Using Properties
EasyApply commutative and associative properties
Use commutative propertyUse associative property
5
Mixed Mental Math
EasyPractice all strategies
Choose best strategyApply all methods
Frequently Asked Questions
- Are these Grade 3 Mental Math worksheets free?
- All printable Mental Math worksheets on MyMathKid are free to download and print. Answer keys are a premium feature available with a subscription.
- How many Mental Math worksheets are available for Grade 3?
- There are 5 progressive Mental Math lessons with worksheets for Grade 3, covering skills from foundational concepts to advanced problem solving.
- Are these Mental Math worksheets aligned to Common Core?
- Yes — Grade 3 Mental Math aligns with Common Core 3.NBT (Number & Operations in Base Ten).
- What will my child practice with these Mental Math worksheets?
- Your child will practice: Break Apart Strategy, Compensation Strategy, Multiplication Patterns, Using Properties, and more.