1. 5 Minute Math In which place is the 4 in each of the following: 140,399 48,210 450 129,394 Write 2 equivalent fractions for each of the following:

2. Rounding Decimal Numbers Estimating and Approximating Sums and Differences 3.3

3. Learning Goal We will use our previous understanding of how to round integers so that we can round decimals. We know we’ve got it when we can approximate the result of an addition or subtraction involving decimals.

4. Vocabulary Approximating Decimal Point Hundredth Place Product Rounding Tenth Thousandth

5. Rounding Decimal Numbers When you’re rounding a number, you are replacing it with one of an approximate value Decimal numbers are rounded in the same way natural numbers are

6. Rounding Decimal Numbers So, if you’re rounding 207.839 to the nearest hundredth…

7. Estimating and Approximating Sums and Differences Approximating a mathematical calculation is useful for calculating an estimated result quickly When approximating an estimation containing decimals, round each number to the nearest unit

8. Estimating and Approximating Sums and Differences OperationApproximation 4343 + 7558 ---------- 11901 4342.81 + 7557.79 ----------------- 11900.60

9. Let’s Practice! Grade 5 Page 98 – #1 – #2 Page 99 – #1 a, b Grade 6 Page 100 – #1 – #2 Page 101 – #1 a, b