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## PowerPoint Slideshow about ' Decimal Movement' - elita

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Decimal Movement

- 85.2 x 100
- 6,025 x 100
- .025 x 10
- 75,025.2 x 1000
- 63.02 x 10

63.7 ÷ 100

.024 ÷ 10

52,748 ÷ 1,000

5.01 ÷ 100

102,854 ÷1000

SHOW YOUR WORK !

Word Problem

- Using a PLACE VALUE CHART to solve this problem.
A school district ordered 143 boxes of craft glue. Each box contains 100 bottles of glues. If the glue is to be shared between 10 schools, how many bottles of glue does each school receive?

Do I Multiply or Divide?

- THINK – Is there more than one step?
- THINK – If so, what is the first step?
- THINK – Am I going from a smaller number to a larger number? Or a larger number to a smaller number?
- THINK – Does this make sense?

A school district ordered 143 boxes of craft glue. Each box contains 100 bottles of glue. If the glue is to be shared between 10 schools, how many bottles of glue does each school receive?

- There is more than one step. I have to know how many bottlesall together to sharebetween 10 schools.
- The first step is to find the total number of bottles of glue.
- I am going from a smaller number to a larger number.
- Yes, it makes sense because for every box there are 100 bottles of glue. So that means I need to multiply.

A school district ordered 143 boxes of craft glue. Each box contains 100 bottles of glue. If the glue is to be shared between 10 schools, how many bottles of glue does each school receive?

Now, I need to DIVIDE that number by 10.

Decimal Movement

- A school district ordered 143 boxes of craft glue. Each box contains 100 bottles of glue. If the glue is to be shared between 10 schools, how many bottles of glue does each school receive?
THINK – Just like before

THINK – Since the decimal moves,

MULTIPLICAIOTN moves to the RIGHT

and DIVISION moves to the left.

DO – Write the problem

DO – Show decimal Movement

- A school district ordered 143 boxes of craft glue. Each box contains 100 bottles of glue. If the glue is to be shared between 10 schools, how many bottles of glue does each school receive?
THINK – Since I am multiplying, I need to move the decimal to the right. I need to get to a bigger number.

1. 143 x 100 (remember to add the decimal to the end of the number)

2. 143. __ __ I need to move TWO places because there are 2 zeros in 100.

3. 14,300

4. Now DIVIDE that number by 10.

14,300 ÷ 10

14,300. (remember to add the decimal to the end of the number.)

5. 1,430

Now You Try

- A school district ordered 167 boxes of craft glue. Each box contains 100 bottles of glue. If the glue is to be shared evenly between 10 schools, how many bottles of glue will each school receive?
- Do BOTH place value chart and decimal movement to solve this problem.

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