Unit 3 - Variable Substitution

Work out the value of the following expressions when a = 3, b = 4 and c = 5.
2a² + c²   

• 22
• 34
• 68
• 43

Tags

CCSS.6.EE.A.2C

Work out the value of the expression when a = 3, b = 4 and c = 5.

• 3
• 1   1/3
• 4
• 1/3

Tags

CCSS.6.EE.A.2C

Work out the value of the expression when x = 3, y = – 2 and z = – 4.
y + x – z     

• -5
• -3
• 3
• 5

Tags

CCSS.6.EE.A.1

Work out the value of the expression when x = 3, y = – 2 and z = – 4.

• 1
• -1
• 1/5
• -6

Tags

CCSS.6.EE.A.2C

Work out the value of the expression when x = 3, y = – 2 and z = – 4.
2x² + z²   

• 2
• 27
• 50
• 34

Tags

CCSS.6.EE.A.2C

If a = 4 and b = 6, what is the value of 3a + 5b?

• 40
• 42
• 44
• 46

Tags

CCSS.6.EE.A.2C

If a = 4, b = 5 and c = 6, find 2c-a-b

• 4
• 3
• 6
• 5

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

What is the value of -2v + 2h - 8s if v = 9, h = 7, and s = -6?

• 44
• -44
• 54
• -54

Tags

CCSS.6.EE.A.2C

• -1600

• 1600

• 1604

• 1596

• 7

• -7

• 12

• -2