Unit 2 Review

Rounding/Random

100

Round to the nearest tens place.

                             17

       10 <————————>20

20

200

Round to the nearest hundreds place.

                             152

              100<-—————->200

200

300

Round to the nearest hundreds place.

                             647

              600<-—————->700

600

400

Which equations are true? Choose all that apply. *Hint - there may be more than 1 right answer*

A. 438 - 94 = 431 - 100

B. 937 - 798 = 939 - 800

C. 622 - 211 = 611 - 200

B. 937 - 798 = 139

    939 - 800 = 139

C. 622 - 211 = 411

    611 - 200 = 411

500

Which of the following correctly shows rounding to the nearest ten? 

A. 288 --->300

B. 357 --->360

C. 384 --->390

D. 425 --->420

B. 357 --->360

Place Value

100

What place is the number 7 in?

47

Ones

200

What place is the number 4 in?

439

Hundreds

300

What place is the number 3 in?

839

Tens

400

What is the value of the 9 in the number below:

9,634

9,000

500

What is the value of the 2 in the number below: 

7,263

200

Addition

100

Find the sum (Addition)

3+7=

3+7=10

200

Find the sum (Addition)

12+9=

12+9=21

300

Chloee collects coins. She has 278 coins from countries in Europe. She has 443 coins from other countries. How many coins does she have altogether? 

721 coins

400

On Monday, Liyah read 248 pages of a book. On Tuesday, she read 175 pages. How many pages did Liyah read over the two days? 

*Don't forget your label!!*

423 pages

500

On Monday, Celine jumps the rope 213 times. Then she rests. After resting, she jumps the rope 324 times. Then she rests. Finally, the jumps the rope 186 times. 

Which expressions show how to find the total number of jumps? *Hint there may be more than one!* 

A. 324 + 186 + 213

B. 213 + 186 - 324

C. 186 + 213 - 324

D. 213 + 324 + 186

A. 324 + 186 + 213

D. 213 + 324 + 186

For double points - Solve! 

Subtraction

100

Find the difference (Subtraction)

8-4=

8-4=4

200

Find the difference (Subtraction)

15-7=

15-7=8

300

Find the difference (Subtraction)

25-17=

25-17=8

400

Zach saved $739. London saved $284 less than Zach. How much did London save? 

*Don't forget your label!!*

$455

500

Trenton is reading a book with 542 pages. He has already read 299 pages. How many pages are left to read? 

*Don't forget your label!!* 

243 pages

Number Forms

100

Write 209 in expanded form

200 + 9 OR 200 + 0 +9

200

Write 508 in expanded form. 

500 + 8 OR 500 + 0 + 8

300

Write one thousand three hundred seven in standard form.

1,307

400

Write one thousand three hundred seven in explanded form. 

1,000 + 300 + 7 OR 1,000 + 300 + 0 + 7

500

Write the number three thousand five hundred seventeen in expanded form AND standard form. 

3,517

3,000 + 500 + 10 + 7