Topic 2 Review

Place Value

100

Write the expanded form for the number.

47,329

47,329

40,000 + 7,000 + 300 + 20 + 9

200

What is the value of the 2?

38,290, 396

200,000

or

two hundred thousand

300

Write the symbol that completes the comparison.

45,938     45,398

45,938   > 45,398

400

Write two numbers that round to 45,000.

Answers will vary.

500

Which number has one digit that represents ten times the value of the digit to its right?

375,682

209,945

203,186209,945

209,945

Adding

100

12,395 + 14,609 =

27,004

200

12,395 + 13,829 =

26,224

300

True or False

69,844 + 1,014 = 70,452

False

400

8, 7 2 3 + 2,849 + 6,419 =

2, 8 4 9

+ 6, 4 1 9

8,723 + 2,849 + 6,419 =

17,991

500

12,769 + 16,065 = ____ + 15,402

13,432

Subtracting

100

6,572 - 239 =

6,333

200

Fill in the missing digits.

10,146 - 6,452 = _,6_4

3,694

300

True or False

67,407 - 38,227 = 29,180

True

400

Subtract. Then use addition to check your work.

24,421 - 15,029 =

9, 3 9 2

15,029 + 9,392 = 24,421

500

8,000 - 6,280 =

1,720

Estimating

100

Estimate the sum.

1,219 + 4,620 =

6,000

200

Estimate the difference.

8,352- 3,421 =

5,000

300

Round to the nearest hundreds. Then estimate the sum.

1,906 + 4,287 =

6,200

400

Estimate the sum.

652,198 + 49,753 =

700,000

500

Estimate the sum.

3,825 + 1,297 + 4,175 = 

9,000

Problem Solving

100

The table shows the number of hot dogs that were sold over the weekend. What was the total number sold?

                                              Hot Dogs Sold

                                         Friday          3,825

                                         Saturday      1,297

                                         Sunday         4,175

                                          

9,297

200

There are 332,054 people in a city.  168,278 are under the age of eighteen.  How many people are eighteen or older?

163, 776 people are 18 or older.

300

Nadia's pedometer recorded 43,498 steps in one week.  Her goal is 88,942 steps.  How many more steps does Nadia need to read her goal?

45,444 more steps

400

A park district holds a fundraiser over 4 weekends in which teams swim laps.  The goal was 40,000 laps.  Over three weekends the teams swam 8,597 laps, 11,065 laps, and 9,211 laps.  How many laps do they need to swim the fourth weekend to reach their goal?

11,127 laps

500

Joe and Sara recorded the number of birds they saw in the park over two summers. How many more total birds did they see this year compared to last year?

YEAR               FINCHES               PIGEONS

Last Year           1,219                    4,620

This Year.           1,906                   4,287

354 more birds