Math Review

Expanded Form

100

27

20+7

2x10+7x1

200

342

300+40+2

3x100+4x10+2x1

300

4510

4000+500+10

4x1000+5x100+1x10

400

3070

3000+70

3x1000+7x10

500

4000

4000

4x1000

< > =

100

45____35

45>35

200

4387____4378

4387>4378

300

40mm____40cm

40mm<40cm

400

4weeks____28days

4weeks=28days

500

300minutes____6hours

300mins=6hours

Numbers

100

List these numbers in ascending order

423, 342, 324, 432, 243, 234

234, 243, 324, 342, 423, 432

200

Fill in the blanks..

25, 35, ____, 55,____, 75

25, 35, 45, 55, 65, 75

300

143, ___, 343, 443, ___, ___

143, 243, 343, 443, 543, 643

400

130, ___, 230, 280, ___, 380

130, 180, 230, 280, 330, 380

500

___, 295, 345,___,___,495

245,295,345,395,445,495

Rounding

100

Round to the nearest ten.

4082

4080

200

Round to the nearest ten.

3333

3330

300

Round to the nearest hundred.

4553

4600

400

Round to the nearest thousand.

8541

9000

500

Round to the nearest thousand.

27,453

27,000

Problem Solving

100

Write a number greater than 380 but less than 410. It has a 9 in the ones, 4 in the hundreds.

409

200

Write a number greater than 745 but less than 845.

It is a multiple of 10.

750, 760, 770, 780, 790,800, 810, 820, 830, 840

300

Jonah makes $150 a week for his newspaper route job. How much money will he make in 6 weeks?

$900

400

Tucker gets paid $25 for washing the outside of a car.

He wants to save up to buy a bike that costs $450. How many cars does he have to wash to be able to buy his bike?

18 cars

500

Kennedy needs to save $460 for gymnastics. She makes $20 a week walking her neighbours dog. How many weeks does she need to work to pay for gymnastics?

23 weeks