Today we will be estimating decimal sums, differences, products and quotients using three new methods: Clustering, Compatible Numbers & Front-end estimation.
Clustering - means rounding the numbers to the same value.Compatible Numbers - these are numbers that are close to the numbers that are in the problem and are helpful when you are solving the problem mentally.
Front-end estimation - used when searching for the range for the sum
Assignment
Pages 106 & 107
- Problems 1 - 35 odd & 36 - 43 all
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