Math Review

Decimals

100

If I had 3 out of 10 nails painted purple, what decimal would be represented? 

0.3

200

If I have 4 rulers, 1 calculator, 2 pencils and 3 erasers what is the decimal represented by each object? 

rulers - 0.4

calculator - 0.1

pencils - 0.2

erasers - 0.3 

300

2.1 + 0.7 = 

2.8 

400

0.3 + 0.8 = 

1.1 

500

How do I say this number? 

1.05

one and five hundredths 

Expanded Form

100

1432

1000 + 400 +30 +2

200

7456

7000 + 400 + 50 + 6

300

2320 

2000 + 300 + 20

400

3030

3000 + 30 

500

34 235

30 000 + 4000 + 200 + 30 + 5

Standard Form

100

2000 + 900 + 40 + 5

2945

200

2000 + 700 + 20 + 1

2721

300

1000 + 50 

1050

400

20 000 + 3000 + 700 + 20 + 2

23 722

500

40 000 + 50 + 6

40 056

Ordering Numbers

100

Order from least to greatest : 

5678, 8542, 1257

1257, 5678, 8542

200

Order from greatest to least : 

3211, 1324, 4133

4133, 3211, 1324

300

Order the numbers from least to greatest: 

3457, 9213, 4765, 5111

3457, 4765, 5111, 9213

400

Which way should the sign go? 

a. 3705 < 5790

b. 3705 > 5790 

a. 

500

Which way should the sign go? 

a. 4321 < 1234

b. 4321 > 1234

b. 

Place value

100

What place is the 3 in? 

1234

tens 

200

What place is the 5 in? 

1532

hundreds

300

What place is the 7 in?

7654

thousands 

400

What place is the 2 in?

23 789

ten thousands 

500

What place is the first 0 in? 

 40 089

thousands