Int 1 Intro Unit Review

Prime

100

Is 9 prime or composite? 

Composite! 

200

Is 97 prime or composite? 

Prime! 

300

Which of these numbers is prime: 1, 8, 23, 52

23

400

Is 1 prime or composite? 

Neither! It's a special number :) 

500

Find the two prime numbers: 18, 27, 7, 8, 33, 39, 37, 22, 16

7 and 37! 

GCF

100

What is the Greatest Common Factor (GCF) of 3 and 6? 

3

200

What is the GCF of 40 and 10? 

10

300

What is the greatest common factor (GCF) of 24 and 28? 

4

400

What is the greatest common factor of 54 and 45? 

9

500

What is the GCF of 16, 72, and 80? 

8

LCM

100

LCM of 3 and 4

12

200

LCM of 10 and 3

30

300

LCM of 15 and 6

30

400

LCM of 27 and 18

54

500

LCM of 14, 21, and 7

42

Rounding Decimals

100

Round 10.1 to the nearest whole number

10

200

Round 74.89 to the tenths place

74.9

300

Round 350.005 to the nearest hundreth

350.01

400

Round 83.5789 to the nearest hundreth

83.579

500

Round 18.999 to the nearest hundreth

19.00 or 19