Module 3
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Module 3. Lesson 5. Problem Solving. Freddy has $250 in ten dollar bills. How many ten dollar bills does Freddy have?. Problem Solving. Freddy has $250 in ten dollar bills. He gave 6 ten dollar bills away to his brother. How many ten dollar bills does he have left?. 100. 210. 220. 230.

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Module 3

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Module 3

Module 3

Lesson 5


Problem solving

Problem Solving

  • Freddy has $250 in ten dollar bills. How many ten dollar bills does Freddy have?


Problem solving1

Problem Solving

  • Freddy has $250 in ten dollar bills. He gave 6 ten dollar bills away to his brother. How many ten dollar bills does he have left?

100

210

220

230

240

250

20

10

40

50

60

70

80

90

30

100

200

Wait, we don’t have enough tens. Where can we get more tens to take away?

Now, can we take away the last ten dollar bill?

Can we take away 6 ten dollar bills?

How many hundreds and tens does Freddy have now? Does that answer our problem?


Problem solving2

Problem Solving

  • Freddy has $250 in ten dollar bills. He gave 6 ten dollar bills away to his brother. How many ten dollar bills does he have left?

How many tens does Freddy have now?


Place value

Place Value

Count with me 1 one, 2 ones, 3 ones, 4 ones. 1 ten, 2 tens, 3 tens. 1 hundred, 2 hundred.


Place value1

Place Value

Can I make larger units?


Place value2

Place Value

2 hundreds

4 ones

3 tens

In order from greatest to smallest, how many of each units are there?


Place value3

Place Value

2 hundreds

4 ones

3 tens

2

4

3

What number does that represent?


Place value4

Place Value

2 hundreds

4 ones

3 tens

2

4

3

What if I had 3 tens, 4 ones and 2 hundreds?

234 is called unit form


Let s show 563 in base ten form

Let’s show 563 in Base ten form

5

60

6

3

3

500

What is the amount of each?

This is called the expanded form

Now show me the unit form


Now try 627 without a place value chart show the number in expanded form

Now try 627 without a place value chart. Show the number in expanded form

627

600

7

20


S how the number in base ten form

Show the number in base ten form

627

600

7

20

6 hundreds

2 tens

7 ones


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