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# Splash Screen - PowerPoint PPT Presentation

Splash Screen. Are You Ready for Chapter 14? Lesson 1: Add Hundreds Lesson 2: Regroup Ones Lesson 3: Regroup Tens Lesson 4: Problem-Solving Strategy: Make a Table Lesson 5: Estimate Sums Lesson 6: Subtract Hundreds Lesson 7: Regroup Tens Lesson 8: Regroup Hundreds

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Presentation Transcript
Are You Ready for Chapter 14?
• Lesson 2: Regroup Ones
• Lesson 3: Regroup Tens
• Lesson 4: Problem-Solving Strategy: Make a Table
• Lesson 5: Estimate Sums
• Lesson 6: Subtract Hundreds
• Lesson 7: Regroup Tens
• Lesson 8: Regroup Hundreds
• Lesson 9: Estimate Differences
• Lesson 10: Problem-Solving Investigation: Choose a Strategy
• Chapter 14 Review

Select a hyperlink to go to the corresponding slides.

5

0

0

• How can you solve 500 + 400?

4

0

0

Lesson 1—Teach

5

0

0

• What addition fact can you use to solve this problem?

4

0

0

5 + 4 = 9

Lesson 1—Teach

5

0

0

• What is500 + 400?

4

0

0

9

0

0

900

Lesson 1—Teach

300 + 200 = ___

500

500 + 100 = ___

600

700 + 200 = ___

900

400 + 400 = ___

800

Lesson 1—Check

1

• Regroup. 10 ones is the same as 1 ten. Where do we write the 1?

6

1

1

3

1

9

above the numbers in the tens column

Lesson 2—Teach

1

• What do we write in the ones place?

6

1

1

3

1

9

0

0

Lesson 2—Teach

1

• Add the tens. What is 1 + 1 + 1?

6

1

1

3

1

9

3

0

3

Lesson 2—Teach

1

• Add the hundreds. What is 6 + 3?

6

1

1

3

1

9

9

3

0

9

Lesson 2—Teach

1

• What is 611 + 319?

6

1

1

3

1

9

9

3

0

930

Lesson 2—Teach

518

+ 239

268

+ 316

732

+ 129

861

757

584

Lesson 2—Check

1

• How do we regroup 17?

3

9

9

1

4

8

7

1 ten and 7 ones

Lesson 3—Teach

1

• Add the tens. What is1 + 9 + 4?

3

9

9

1

4

8

7

14

Lesson 3—Teach

1

1

• How do we regroup 14 tens?

3

9

9

1

4

8

4

7

1 hundred and 4 tens

Lesson 3—Teach

1

1

• Add the hundreds. What is 1 + 3 + 1?

3

9

9

1

4

8

4

5

7

5

Lesson 3—Teach

1

1

• What is399 + 148?

3

9

9

1

4

8

4

5

7

547

Lesson 3—Teach

482

+ 255

284

+ 243

182

+ 226

408

737

527

Lesson 3—Check

What do I know?

Underline what you know.

Lesson 4—Teach

How will I solve the problem?

I will make a table to find the time that Sonja will leave.

Lesson 4—Teach

2

4:30

3

6:30

Make a table.

Sonja’s plane will leave at 6:30.

Lesson 4—Teach

Flight 1 leaves at 2:30.

Flight 2 leaves at 4:30.

Flight 3 leaves at 6:30.

yes

Lesson 4—Teach
Make a table to solve.
• Conner read 1 book every week for 6 weeks. Each book had 100 pages. How many pages did he read in all?

600 pages

Lesson 4—Check

678 + 118

• What is 678 rounded to the nearest ten?

680

Lesson 5—Teach

678 + 118

• What is 118 rounded to the nearest ten?

120

Lesson 5—Teach

678 + 118

• What is the estimated sum of 678 + 118 to the nearest ten?

680 + 120 = 800

Lesson 5—Teach

678 + 118

• What is 678 rounded to the nearest hundred?

700

Lesson 5—Teach

678 + 118

• What is 118 rounded to the nearest hundred?

100

Lesson 5—Teach

678 + 118

• What is the estimated sum of678 + 118 to the nearest hundred?

700 + 100 = 800

Lesson 5—Teach

404 + 161

• What is 404 rounded to the nearest ten?

400

Lesson 5—Check

404 + 161

• What is 161 rounded to the nearest ten?

160

Lesson 5—Check

404 + 161

• What is the estimated sum of404 + 161 to the nearest ten?

400 + 160 = 560

Lesson 5—Check

404 + 161

• What is 404 rounded to the nearest hundred?

400

Lesson 5—Check

404 + 161

• What is 161 rounded to the nearest hundred?

200

Lesson 5—Check

404 + 161

• What is the estimated sum of404 + 161 to the nearest hundred?

400 + 200 = 600

Lesson 5—Check

404 + 161

• Which estimate is closer to the exact answer?

rounding to the tens

Lesson 5—Check

• Subtract the ones. What is 0 – 0?

6

0

0

3

0

0

0

0

Lesson 6—Teach

• Subtract the tens. What is 0 – 0?

6

0

0

3

0

0

0

0

0

Lesson 6—Teach

• Subtract the hundreds. What is 6 – 3?

6

0

0

3

0

0

3

0

0

3

Lesson 6—Teach

• When subtracting hundreds, you can ignore the zeros. All that is left is a one-digit number fact which has two zeros after it.

6

0

0

3

0

0

3

0

0

Lesson 6—Teach

• 6 hundreds– 3 hundreds3 hundreds

6

0

0

3

0

0

600– 300300

3

0

0

Lesson 6—Teach
Subtract.

500

– 200

400

– 300

700

– 100

600

300

100

Lesson 6—Check

• How do you solve 286 – 179?

2

8

6

1

7

9

Lesson 7—Teach

Try to subtract the ones. Can you subtract 9 from 6?

2

8

6

1

7

9

no

Lesson 7—Teach

Regroup the tens. Change one of the tens into ten ones. How many tens does that leave you?

7

2

8

6

1

7

9

8 – 1 = 7

Lesson 7—Teach

How many ones does that give you?

16

7

2

8

6

1

7

9

6 + 10 = 16

Lesson 7—Teach

Now subtract the ones. What is 16 – 9?

16

7

2

8

6

1

7

9

7

7

Lesson 7—Teach

Subtract the tens. What is 7 – 7?

16

7

2

8

6

1

7

9

0

7

0

Lesson 7—Teach

Subtract the hundreds. What is 2 – 1?

16

7

2

8

6

1

7

9

1

0

7

1

Lesson 7—Teach

What is286 – 179?

16

7

2

8

6

1

7

9

1

0

7

107

Lesson 7—Teach
Subtract.

998

– 389

753

– 119

873

– 14

859

609

634

Lesson 7—Check

• How do you solve 534 – 152?

5

3

4

1

5

2

Lesson 8—Teach

• Subtract the ones. What is 4 – 2?

5

3

4

1

5

2

2

2

Lesson 8—Teach

• Try to subtract the tens. Can you subtract 5 from 3?

5

3

4

1

5

2

2

no

Lesson 8—Teach

• Regroup the hundreds. Change one of the hundreds into 10 tens. How many hundreds does that leave you?

4

5

3

4

1

5

2

2

5 – 1 = 4

Lesson 8—Teach

• How many tens does that give you?

13

4

5

3

4

1

5

2

2

3 + 10 = 13

Lesson 8—Teach

• Now subtract the tens. What is 13 – 5?

13

4

5

3

4

1

5

2

8

2

8

Lesson 8—Teach

• Subtract the hundreds. What is 4 – 1?

13

4

5

3

4

1

5

2

3

8

2

3

Lesson 8—Teach

• What is534 – 152?

13

4

5

3

4

1

5

2

3

8

2

382

Lesson 8—Teach
Subtract.

277

– 194

537

– 356

518

– 65

453

83

181

Lesson 8—Check

434 – 196

• What is 434 rounded to the nearest hundred?

400

Lesson 9—Teach

434 – 196

• What is 196 rounded to the nearest hundred?

200

Lesson 9—Teach

434 – 196

• What is the difference between 400 and 200?

400 – 200 = 200

Lesson 9—Teach

434 – 196

• 434 – 196 is about 200. You have rounded numbers to the hundreds to estimate the solution to the problem.
Lesson 9—Teach

434 – 196

• What is 434 rounded to the nearest ten?

430

Lesson 9—Teach

434 – 196

• What is 196 rounded to the nearest ten?

200

Lesson 9—Teach

434 – 196

• What is the difference between 430 and 200?

430 – 200 = 230

Lesson 9—Teach

434 – 196

• 434 – 196 is about 230. You have rounded numbers to the tens to estimate the solution to the problem.
Lesson 9—Teach

598 – 294

• What is 598 rounded to the nearest hundred?

600

Lesson 9—Check

598 – 294

• What is 294 rounded to the nearest hundred?

300

Lesson 9—Check

598 – 294

• What is the difference between 600 and 300?

600 – 300 = 300

Lesson 9—Check

598 – 294

• What is 598 rounded to the nearest ten?

600

Lesson 9—Check

598 – 294

• What is 294 rounded to the nearest ten?

290

Lesson 9—Check

598 – 294

• What is the difference between 600 and 290?

600 – 290 = 310

Lesson 9—Check

598 – 294

• Which estimate is closer to the exact answer?

rounding to the hundreds

Lesson 9—Check
What do I know?
• Underline what you know.
Lesson 10—Teach
One way is to work backward.

I have 300 cubes left.

I gave 100 cubes to Rikki.

I gave 200 cubes to Polly.

300 + 100 + 200 = 600

300

+ 100

+ 200

600

I started with 600 cubes.

Lesson 10—Teach
• 600 – 200 = 400I gave Polly 200 cubes.
• 400 – 100 = 300I gave Rikki 100 cubes.

Lesson 10—Teach
Choose a strategy. Solve.
• I am a number less than 150. There is a 7 in my ones place. I am greater than 140. What number am I?

147

Lesson 10—Check

Complete the sentences.

regroup

To ____________ is to take apart a number and write it a new way.

To ____________ is to change the value of a number into one that is easier to work with.

round

regroup

round

Chapter Review 1
Solve.

438

– 165

263

– 116

542

+ 239

781

273

147

Chapter Review 2

Image Bank

Math Tools

Regroup Ones

Regroup Tens

Regroup Hundreds

Chapter Resources