8 9

CALCULATIONS

Addition a + b = c	a plus b equals c
Subtraction a-b-c	a minus b equals r
Multiplication a x b = c	a multiplcd by b equals c
Division a : b = c	a dividcd by b equals c

In conversational style with smaller numbers you can say:

6 + 5= 11	six and five is/ are eleven
3-1=2	one from thrcc is/ leaves two
3 X 4= 12	thrcc times four is twelvc
	three fours are twelve
12 : 4 = 3	four into twelve is three

EQUATIONS

(a - b)(a + b)= y

a minus b in brackets multiplied by a plus b in brackets cquals y

a (8 -b)= x

a open brackets 8 minus b close brackets equals x

15 + (a-b) 8 a

15 plus a minus b in brackets all over 8 a equals b

Jt[(a -b)(a + b)-8]=0

x open square brackets a minus b in brackets multiplied by a plus b in brackets minus 8 close square brackets equals nought.

HOW TO DESCRIBE LINES

A

C

CD is a vertical linę.

EF is a diagonnl linę.

AB is a solid linę.

CD is a hroken linę.

HF is a dotted linę.

GH is a wavy linę.

AB is a horizontal linę.

AB and CD are straight lines. EF is a curved linę.

AB is perpcndicular to CD.

EF is paralle! to GH.

AB and CD are intersecting lines. They intersecl at X.