Maths



= Statistics = //This term has been great, i have been able to learn heaps about statistics. Last yea//r i did not know what a stem and leaf chart was or what a Histogram is. but thanks to Mrs Lyford i know what is is now a steam and leaf graph is .... is a way of summarising a set of data measured on an interval scale. And a histogram ... it is a way of summarising data that are measured on a interval scale. The bars are all connected together like they are glued together.

question 1

a. 4cm length x2 4cm width x2 = 16

5cm width x2 5cm length x2 =25

8cm width x2 8cm length x2 = 64

7cm width x2 7cm length x2 =49

9cm length x2 9cm width x2 =81

6 cm length x2 6 cm width x2 =36

question 2

3m x 3m = 9 answer 9m2

10m x 10m = 100 answer 100m2

11cm x 11cm = 121 answer 121cm2

1.5m x 1.5cm = 2.24 answer 2.24m2

12mm x 12mm = 143 answer 143m2

3.2m x 3.2m = 6.4 answer 6.4m2

question 3

a. area of a square = s squared 16cm2 x 16cm2 = 136

6 x 6= 36

10 x 10= 100

answer 136

169m2 x 169m2 = 1,441

9x9 = 81

6x 6 = 36+0 = 360

10 x 10+ 0 = 1000

c. 49x49=241

9x9=81

4x4=16+0 = 160 160 81 2 401

225x225=4425 5x5=25 20x20=400 200x200=4000

256m2=4286 6x6=36 50x50=250 200x200=4000

676m2=36526 6x6=36 70x70=490 600x600=36000

topic 2

question 1 7cm lengthx2 = 14 3cm widthx2 = 6 answer= 20cm

8cm length x2=16 5cm width x2=10 answer= 26cm

30cm length x2=60 6cm width x2 =12 answer= 72cm

5m widthx2= 10 11m lengthx2=22 answer= 32m

14mm width x2 = 28 20mm length x2=40 answer= 68

12cm lengthx2 24 4cm widthx2= 8 answer= 32

question2

63cm 36cm 70m 66mm 24m 60m 120cm 150mm 140cm 1600

question 3 30m 4cm breadth 72cm 7cm breadth 5m breadth 5m breadth 112cm 11cm 5mm 35cm

Topic 3 question 1

60cm 90cm 120cm 162cm 28cm 252cm

question 2

30x15=450 3,135

question 3 24cm 66cm 80cm 108cm 72cm 42m

question4 64 4 1176 4 200 5

topic4

question 1

dont get it

question 2

did not get it ned help

topic 5

question 1

(2x2=4)x2=8

(4x4)=16x4=64

(5x5)=25x5= 125

(7x7)=49x7=343

(9x9)=81x9=729

(6x6)=36x6= 216

question 3

125cm 343

term 3

Radius and diameter

Every point on a circle is the same distance from the centre. The distance from the centre of the circle to the circumference is called the radius ( plural- raddi) A line segment from one side of a circle to the other side, the goes through the centre is called a diameter.

Term 4

algebra writing and solving equations for practical problems. Example: If you double Nigels age and then add 5 it totals 17. How old is nigel? Answer let n= Nigels ages. 2n+5=17 2n= 17-5 2n=12 n=12 ÷2 n=6

Nigel is 6 years old.

Solving equations : a number sentence containing numbers, a letter and mathematical signs is called an equation. an equation must have an equals sign. Example y+5=12, p-6=14, 8k=32, 2h+6=18 (2h means 2xh)

example: a+14=27 a=13 because 13+14=27

I have learnt a lot of maths in this term. thanks to Mrs Lyford i have achevied a lot.