Chapter 2 Review So Far

Definitions

100

Write the definition for sum:

The answer you get when you add two numbers together. 

200

Write the definition for the word difference: 

The answer you get when you subtract two numbers.

300

Write the definition for the word product: 

The answer you get when you multiply two numbers. 

400

Write the definition for the word quotient. 

The answer you get when you solve a division problem. 

500

Write what a prime number is:

A number with only two factors. 

Rounding

100

Round 579 to the nearest ten.

580

200

Round 757 to the nearest hundred.

800

300

Round 621 to the nearest ten.

620

400

Round the numbers to the nearest hundred. Then find the difference. 392-119=?

300

500

Round the numbers the nearest ten. Then find the sum. 256+684=?

540

Factors

100

List all of the factors for the number 10. 

1, 2, 5, 10 

200

List all of the factors for the number 21. 

1, 3, 7, 21

300

List all of the factors for the number 15. 

1,3,5,15

400

List all of the factors for the number 24. 

1,2,3,4,6,8,12,24

500

List all of the factors for the number 27:

1,3,9,27

GFC

100

GCF of 8 and 12:

Greatest Common Factor: 4

200

GCF of 15 and 25:

Greatest Common Factor: 5

300

GCF of 18 and 24:

Greatest Common Factor: 6

400

GCF of 10 and 20:

Greatest Common Factor: 10

500

GCF of 12 and 16:

Greatest Common Factor: 4

LCM

100

LCM of the numbers 4 and 5:

LCM: 20 

200

LCM of the Numbers 6 and 9:

Least Common Multiple: 18

300

LCM of the numbers 10 and 15:

Least Common Multiple: 30 

400

LCM of the numbers 3 and 7:

Least Common Multiple: 21 

500

LCM of the numbers 7 and 8: 

Least Common Multiple: 56