4:09Rounding to estimate answers

Addition and Subtraction — Level 4

Round numbers to nearest 10, add estimates. Find area by estimating and then adding actuals. Complete algorithms manually or using a calculator and check answers by rounding.

Resources related to this worksheet

Grid game/Dot-to-dot by tens
Fair or unfair?/Parallelograms
Important things you should know
Number lines
Addition and subtraction algorithms