Writing expressions
Types of exercises: writing a situation as an expression, perimeter as an expression, an expression from a story (two steps), describing a formula in words.
Exercises are drawn at random from a large bank - every click gives a different set.
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Write the perimeter as an expression
An isosceles triangle has two equal sides of length x + 5 and a base of length x. Write its perimeter as the sum of the side lengths.
Which formula describes this relationship?
There are x chickens and y cows in a farmyard. The number of legs of all these animals is n.
Choose the expression that matches the text
Jacob has x zloty. Anna has a seventh of what Jacob has. How many zloty does Anna have?
Choose the expression that matches the text
Anna has x zloty. Michael has 5 zloty more than four times what Anna has. Which expression shows how many zloty Michael has?
Write the perimeter as an expression
A triangle has sides of length x + 10, x + 2 and x. Write its perimeter as the sum of the side lengths.
Which formula describes this relationship?
There are x chickens and y pigs in a farmyard. The number of legs of all these animals is n.
Choose the expression that matches the text
Adam has x zloty. Ola has 2 zloty more than Adam. How many zloty does Ola have?
Choose the expression that matches the text
Adam has x zloty. Sophie has half of what Adam has and another 9 zloty. Which expression shows how many zloty Sophie has?
Write the perimeter as an expression
A triangle has sides of length x, x + 14 and y. Write its perimeter as the sum of the side lengths.
Which formula describes this relationship?
One pen costs 7 zloty. The price of n pens is c (in zloty).
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