MAP 4th Grade Math

Explore essential fourth grade math skills and concepts, preparing for MAP tests and real-world problem solving.

Whole Numbers and Place ValueMulti-digit Addition and SubtractionUnderstanding Fractions
Decimals and Their Relationship to FractionsMultiplication and Division StrategiesUnderstanding Geometry and Measurement
Using Math in Shopping and MoneyMeasuring for ProjectsFractions and Sharing
Reading the Question CarefullyEstimating to Check Your Work
Whole Numbers and Pl...Multi-digit Addition...Understanding Fracti...Decimals and Their R...Multiplication and D...Understanding Geomet...Using Math in Shoppi...Measuring for Projec...Fractions and Sharin...Reading the Question...Estimating to Check ...
Study Strategies

Estimating to Check Your Work

Quick Checks with Estimation

Estimation helps you see if your answer makes sense before moving on. Round numbers to the nearest ten or hundred, then do the math in your head. If your answer is way off, try again!

Why It Works

Estimation catches mistakes and saves you time on tricky problems.

Examples

  • Rounding 244 + 388 to 240 + 390 = 630

  • Estimating 49 x 12 as 50 x 10 = 500 to check your answer