Year 7 Mathematics

Define Terms

100

What is a like term?

Terms that have the same variable and power

200

What is a Highest Common Factor?

The highest number that can be divided exactly into each of two or more numbers

300

Highest common factors are sometimes referred to as...

Greatest Common Factor 

400

What is factorising?

Factorising an expression is to write it as a product of its factors

500

What is a trinomial?

An algebraic expression of 3 terms

Like Terms

100

c+c+2b+c=

3c+2b

200

a²+2a+3a²+b

4a²+2a+b

300

i+i+2b+i²+2b²+3b

2i+5b+i²+2b²

400

22r+3+3r

25r+3

500

99a+2a²-19a+3a²

80a+5a²

Highest Common Factor

100

3 and 15

3

200

30 and 15

15

300

5 and 30

5

400

25 and 5

5

500

16 and 24

8

Factorising Trinomials

100

x²+8x+15

(x+3)(x+5)

200

x²+8+12

(x+2)(x+6)

300

x²+4x+4

(x+2)(x+2)

400

x²+15x+44

(x+4)(x+11)

500

x²+7x+12

(x+3)(x+4)

Mystery Topic

100

Greatest Common Factors are sometimes referred to as...

Highest Common Factors

200

x²+13x+22

(x+11)(x+2)

300

Highest Common Factor of 99 and 22

11

400

Collect Like Terms: 

5a²+5a+2a²+2ab

7a²+5a+2ab

500

x²+10x+25

(x+5)(x+5)