Explore essential fourth grade math skills and concepts, preparing for MAP tests and real-world problem solving.
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.
Rounding 244 + 388 to 240 + 390 = 630
Estimating 49 x 12 as 50 x 10 = 500 to check your answer