Unit 1 Review

Rounding

100

Round 152 to the nearest tens place.

150

200

Round 1,543 to the nearest thousands place.

2,000

300

Round 5,342,892 to the nearest hundred thousands place.

5,300,000

400

Round 9,734,092 to the nearest millions place.

10,000,000

500

Round 967,342 to the nearest hundred thousands place.

1,000,000

Whole Numbers

100

34,878 + 88,024

122,902

200

92,730 - 61,824

30,906

300

1,797 x 956

1,717,932

400

2,165 x 664

1,437,560

500

89,632 / 22

4,074 r 4

Equations

100

26 = 8 + v

v = 18

200

x - 7 = 13

x = 20

300

6y = 66

y = 11

400

a / 6 = 13

a = 78

500

n/9 = 5

n = 45

HCF

100

List the factors of 16

1, 2, 4, 8, 16

200

List the factors of 30

1, 2, 3, 5, 6, 10, 15, 30

300

What is the HCF of 30, 12

6

400

What is the HCF of 12, 40 

4

500

What is the HCF of 10, 20, 15

5

LCM

100

List the first 5 multiples of 2

2, 4, 6, 8, 10

200

List the first 5 multiples of 9

9, 18, 27, 36, 45

300

What is the LCM of 40, 20, 60

120

400

What is the LCM of 4, 12, 20

60

500

What is the LCM of 24, 18, 30

360