Pre-Algebra Review

Evaluate the expression yx-z² for when x= 1/2, y=-13 and z=-4

• 9.5
• -22.5
• 45
• -9.5

Tags

CCSS.6.EE.A.2C

Evaluate the expression (ab/c)-de+f for when a=-3, b=1/3, c=-1/2, d=-9, e=12 and f=7

• 117
• 115.5
• -100.5
• -50

Tags

CCSS.6.EE.A.2C

Simplify the expression: -5x+10-9x+2-2x

• -5x+12-11x
• 16x-12
• 5x-12+11x
• -16x+12

Tags

CCSS.7.EE.A.1

Simplify the expression: -4(x-7)

• -4x+28
• 4x-28
• -4x-28
• It is already simplified

Tags

CCSS.6.EE.A.3

Simplify the expression: -4(x-7)

• -4x+28
• 4x-28
• -4x-28
• It is already simplified

Tags

CCSS.6.EE.A.3

Simplify the expression: -3(2x+1)+6x

• -6x-3
• -3
• 3
• 6x+3

Tags

CCSS.6.EE.A.3

Solve the proportion: 2/9 = x/81

• x = 18
• x = 9
• x = 364.5
• x = 8

Tags

CCSS.6.EE.B.7

Create a proportion for the scenario: After 4 days, a tree is 10 feet tall than after 9 days how tall would the tree be?

• 4/10= x/9
• 4/10 = 9/x
• 4/x = 10/9
• x/4 = 9/10

Tags

CCSS.6.EE.B.7

Create a proportion: 35% of 90 is what?

• 35/90 = x/100
• x/90 = 35/100
• x/35 = 90/100
• 35/100 = x/90

Tags

CCSS.6.EE.B.6

Solve the proportion for 35% of 90 is what?

• x  = 315
• x = 31.5
• x = 32
• x = 320

Tags

CCSS.6.EE.B.6