Substitution
Evaluate 2x+3 when x=4
WHAT IS 11
Simplify:
3x+5x
WHAT IS 8X
Simplify:
12x / 3
4x
Simplify:
3x x 4
WHAT IS 12x
Sam is x years old. His brother is 3 years older. Write an expression for his brother’s age
WHAT IS x+3 years old
Find the value of 5y−7 when y=3
WHAT IS 8
Simplify:
7y−2y
WHAT IS 5Y
Simplify:
18x2 / 9x
Simplify:
6a × 3b
WHAT IS 18ab
A pen costs $2 and a notebook costs $5. Write an expression for the total cost of p pens and n notebooks.
Calculate 3a+2b when a=2 and b=5.
Simplify:
6x+4+3x+7
Simplify:
2x2 / x2
WHAT IS 2
Simplify:
2y × 5y
WHAT IS 10y2
The length of a rectangle is x cm and the width is x + +4 cm. Write an expression for the area of the rectangle.
Area = length x width
WHAT IS x2 + 4cm2
Work out x2+6 when x=7
WHAT IS 55
Simplify:
5p+3q−2p+q
WHAT IS 3p + 4p
Simplify:
25a4b5 /10a2b5
WHAT IS 5a2/2
Simplify:
7m × 2m × 3
WHAT IS 42m2
Sophie is x years old. Her dad is 4 times her age. If Sophie is 12, how old is her dad?
WHAT IS 48 years old
Work out ab+a2 when a=3 and b=4
Simplify:
7m−3n+2m+5n−4
WHAT IS 9m + 2n - 4
Simplify:
2x2y2 / 5a2b2
WHAT IS 2x2y2 / 5a2b2
Expand:
(m+2)(m+5)
WHAT IS m2 + 7m +10
A car hire company charges $50 plus $20 per day. Write an expression for the cost of hiring the car for d days
WHAT IS cost = 50 + 20d