Primary 5 - Number and Algebra: Whole Numbers
Standard 5.NA-WN.2 - Practice estimating subtraction word problems by first rounding the numbers then finding the difference.
Included Skills: Estimation
Four operations • 2.1 multiplication and division by tens, hundreds and thousands without using calculators, • 2.2 solving word problems involving the 4 operations, • 2.3 estimation of answers in calculations, • 2.4 checking reasonableness of answers.