Connecting Rules

Here are some equations that are true when x=3 and y=4 but there is at least one mistake. Click on the ticks and crosses to show this piece of work correctly marked.

x + y = 8

x - y = -1

y - x = 1

2x + 3y = 18

5x - 2y = 7

4y - x = 13

xy - 10 = 9

180 - 2x + y = 186

20x - 3xy = 24

x2 + y = 13

10x - y2 = 14

y2 - x2 = 19

x2y + 13 = 49

x2y2 - 2x = 138

x2y3 = 576

x! + y = 10

5(x + y) = 35

3y รท x = 4

= 25
= 7
= y

This web site contains hundreds of free mathematical activities for teachers and students. Start at the Transum Mathematics main page which links to all of the resources available.

Please contact us if you have any suggestions or questions.

Email address

Comment recorded on the 28 September 'Starter of the Day' page by Malcolm P, Dorset:

"A set of real life savers!!
Keep it up and thank you!"

Comment recorded on the 10 April 'Starter of the Day' page by Transum, :

"Sorry Mike, because some of the starters link to live data on the Internet there is no CD version. Thanks for your comments."

Featured Activity



If you have ever played a card game called Top Trumps you will know the main idea of this game already. Based on the properties of polygons this game for two or more players is a fun way to learn geometric facts.


"Numeracy is a proficiency which is developed mainly in Mathematics but also in other subjects. It is more than an ability to do basic arithmetic. It involves developing confidence and competence with numbers and measures. It requires understanding of the number system, a repertoire of mathematical techniques, and an inclination and ability to solve quantitative or spatial problems in a range of contexts. Numeracy also demands understanding of the ways in which data are gathered by counting and measuring, and presented in graphs, diagrams, charts and tables."

Secondary National Strategy, Mathematics at key stage 3

Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths main page links to more activities designed for students in upper Secondary/High school.

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.


©1997-2016 WWW.TRANSUM.ORG