Algebra Toolkit

Simplify.

Work out the value of a when = 35 and = 5.

= ................................................... 

Find the value of  when  and .

............................... 

Find the value of  when  and .

Expand and simplify.

A pen costs 60 cents and a ruler costs 29 cents.
Write down an expression for the total cost, in cents, of pens and rulers.

........................................ cents

Find an expression for the perimeter of this triangle.
Give your answer in its simplest form.

Simplify.

Calculate the value ofwhen = 3 and = 6.

Find the value of when a = 4 and b = 5.

=.....................................

Calculate the value of  when and .

Calculate  when  and 

Solve.

= ................................

Make  the subject of the formula .

= ..............................

Simplify.

[2]

Find the value of  when  and .

Kyra has a faulty thermometer.
It always shows the temperature as 2°C higher than the actual temperature.
The temperature on the thermometer is °C.

Write an expression, in terms of , for the actual temperature.

............................................ °C 

The diagram shows a rectangle with length 7 and width 2.

Write an expression, in its simplest form, for