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3-1 Estimating Fractions and Mixed Numbers A.) Estimating sums and differences of fractions One way to estimate sums/differences of fractions is to round.

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Presentation on theme: "3-1 Estimating Fractions and Mixed Numbers A.) Estimating sums and differences of fractions One way to estimate sums/differences of fractions is to round."— Presentation transcript:

1 3-1 Estimating Fractions and Mixed Numbers A.) Estimating sums and differences of fractions One way to estimate sums/differences of fractions is to round the fractions to either 0,, 1 and then add or subtract. ½ 0 ½ 1 1

2 Comparing Fractions to 1, 0 or. These fractions are close to zero. What do you notice about these fractions?

3 These fractions are close to one. What do you notice about these fractions?

4 These fractions are close to What do you notice about these fractions?

5 Put the following fractions in the correct box. Less than More than

6 Round the following fractions to either 0,, 1. ½ 0 ½ 1

7 Estimate the following sums/differences. First round each fraction to 0,, 1, then add or subtract. ½ a.) + b.) - c.) +

8 B.) Estimating with Mixed Numbers Step: Round each mixed number to the nearest whole number then perform the operation ( +, -, x ) a.) + b.) -c.)

9 Step: When estimating quotients (review), round the divisor first, then replace the dividend with the nearest compatible #. a.) b.) ÷ ÷

10 Demonstrate Understanding: Estimate 1.) 2.) 3.) 4.) ÷ + -


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