Videos, examples, solutions, and lessons to help Grade 4 students learn to solve multi-step word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Common Core: 4.OA.3
Estimate to judge the reasonableness of an answer - 4.OA.3
In this lesson, you will learn to judge the reasonableness of an answer by estimating.
Estimating Sums and Differences
Estimating sums and differences of whole numbers using compatible numbers, front end estimation, and rounding.
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