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 = 7

x - y = 1

y - x = 1

2x + 3y = 18

5x - 2y = 12

4y - x = 13

xy - 10 = 2

180 - 2x + y = 186

20x - 3xy = 33

x2 + y = 13

10x - y2 = 14

y2 - x2 = 7

x2y + 13 = 49

x2y2 - 2x = 138

x2y3 = 576

x! + y = 10

5(x + y) = 35

3y รท x = 4

xy
2
= 6
84
xy
= 7
36y
5x
= y

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Spinsum

Spinsum

Arrange the numbers on the squares so that the totals along each line of three squares are equal. There are five levels of difficulty and the fifth level is very hard. Transum trophies are available.

Numeracy

"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

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