Patterns in Decimal Division

1. Patterns in Decimal Division

2. MCC5.NBT.2 Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of 10. Use whole-number exponents to denote powers of 10.

3. Essential Question: How can we use basic facts and patterns to divide with and without decimals?

4. If I know that - 200 ÷ 5 = 40 & 20 ÷ 5 = 4 Then, what would be the answer to – 2 ÷ 5 = ** You know the answer will be a decimal because divisor is less than the dividend***

5. If I know that - 400 ÷ 8 = 50 & 40 ÷ 8 = 5 Then, what would be the answer to – 4 ÷ 8 = ** You know the answer will be a decimal because divisor is less than the dividend***

6. If I know that - 180 ÷ 6 = 30 & 18 ÷ 6 = 3 Then, what would be the answer to – 1.8 ÷ 6 = ** You know the answer will be a decimal because divisor is less than the dividend***

7. Guided Practice

8. 100 ÷ 5 = _____ 10 ÷ 5 = _____ 1 ÷ 5 = _____

9. 300 ÷ 5 = _____ 30 ÷ 5 = _____ 3 ÷ 5 = _____

10. 160 ÷ 4 = _____ 16 ÷ 4 = _____ 1.6 ÷ 4 = _____

11. 630 ÷ 9 = _____ 63 ÷ 9 = _____ 6.3 ÷ 9 = _____

12. 720 ÷ 8 = _____ 72 ÷ 8 = _____ 7.2 ÷ 8 = _____

13. Independent Practice Workbook page 37 # 1-12