Substitution

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

• 7
• 8
• 9
• 6

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.6

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

• 5
• 6
• 8
• 10

Tags

CCSS.6.EE.A.2C

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

• 10
• 12
• 15
• 36

Tags

CCSS.6.EE.A.2C

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.
2xz

• 1
• 24
• -24
• 9

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

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.

• -3
• 4
• 3
• -4

Tags

CCSS.6.EE.A.2C