Year 8 - Review (I) - Expressions, Equations, Formulae

Find x²+3 when x = -3

• 12

• 6

• -6

• -12

Find 3x²+x+1 when x = 2

• 13

• 15

• 17

• 19

Find 3v+v³ when v= -2

• 14

• 2

• -14

• -2

Find 2y²+3y-4 when y = -4

• 20

• 24

• 40

• 16

Find 125+m³ when m = -5

• 0

• 100

• 110

• 250

Find 100-5x² when x= -4

• 20

• -25

• 25

• -20

Janeen's mother is 47. She is 26 years older than Janeen. Which equation can be used to find Janeen's age j?

• j + 26 = 47

• 26j = 47

• j - 26 = 47

• 47j = 26

Tags

CCSS.HSA.CED.A.3

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.

Tags

CCSS.6.EE.B.7

What is the inverse operation of subtraction?

• Subtraction
• Multiplication
• Division
• Addition

Tags

CCSS.2.NBT.B.5

CCSS.2.NBT.B.7

CCSS.2.NBT.B.9

6z + 3 -4z = 9

• z = 3
• z = 60
• z = 30
• z = 1

Tags

CCSS.8.EE.C.7B