Patterns in Decimal Division

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.

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

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***

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***

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***

Guided Practice

100 ÷ 5 = _____10 ÷ 5 = _____1 ÷ 5 = _____

300 ÷ 5 = _____30 ÷ 5 = _____3 ÷ 5 = _____

160 ÷ 4 = _____16 ÷ 4 = _____1.6 ÷ 4 = _____

630 ÷ 9 = _____63 ÷ 9 = _____6.3 ÷ 9 = _____

720 ÷ 8 = _____72 ÷ 8 = _____7.2 ÷ 8 = _____

Independent PracticeWorkbook page 37 # 1-12