Unit 5 Review

Solve for x

100

x + 37 = 72

35

200

15x = 135

9

300

3x + 22 = 27 + 22

9

400

7x + 5 = 49 + 5

7

500

4(x - 3) = 4(7)

10

Distributive Property

100

x( x + 7)

x² + 7x

200

3y + 8y

y(3 + 8)

300

4(5 + x)

20 + 4x

400

42x + 36

6(7x + 6)

500

54x + 81

9(6x + 9)

Prime Factorization

100

12 and 16

12= ________

16= ________

12= 2²x3

16= 2⁴

200

14 and 18

14= _____

18= _____

14= 7x2

18= 3x3x2

300

35 and 42

35= _____

42= _____

35= 5x7

42= 7x2x3

400

84 and 72

84= _____

72= _____

84= 2x2x3x7

72= 3x3x2x2x2

500

81 and 96

81= _____

96 = _____

81= 3x3x3x3

96= 2⁵x3

GCF/LCM

100

4 and 6

4= _____

6= _____

LCM= _____

GCF= _____

4= 2x2

6= 2x3

LCM= 12

GCF= 2

200

15 and 25

15= _____

25= _____

LCM= _____

GCF= _____

15= 3x5

25= 5x5

LCM= 75

GCF= 5

300

26 and 32

26= _____

32= _____

LCM= _____

GCF= _____

26= 2x13

32=2⁵

LCM= 416

GCF= 2

400

22 and 4

22= _____

4= _____

LCM= _____

GCF= _____

22= 2x11

4= 2x2

LCM= 44

GCF= 2

500

42 and 54

42= _____

54= _____

LCM= _____

GCF= _____

42= 3x2x7

54= 3x3x2x3

LCM= 378

GCF= 6

Inequalities

100

Give 3 numbers that x could be

x<45

answers will vary

200

Give 3 numbers that x could be

x>62

answers will vary

300

Give 3 numbers that x could be

6x-5≥13

answers must be ≥3

400

Give 3 numbers that x could be

10 + x < 15

answers must be < 5

500

Give 3 numbers that x could be

x - 7 > 15

answers must be > 22