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Sunday, 12 May 2013

SA1 Maths Practice Paper 1

Hi 5F!

I apologise for sending this post so late. I was having some problems logging in to the blog. As promised, here are the answers.

1.
1
6.
4
11.
4
2.
1
7.
3
12.
3
3.
3
8.
2
13.
2
4.
4
9.
2
14.
3
5.
4
10.
3
15.
3


16.
705064
17.
4587
18.
99 x 1001 – 99 = (99 x 1001) – (99 x 1)
= 99 x 1000
= 99000
19.
7 x (8 – 5) + 10 = 31
20.
8 1/3 
21.
51
22.
1 / 16
23.
48
24.
4 : 3
25.
3 : 5 : 2
26.
565904 566000
566000 ÷ 500 = 1132
27.
1 – ¼ = ¾
¾ à $240
¼ à $240 ÷ 3 = $80
4/4 à $80 x 4 = $320

Or

3u à $240
1u à $240 ÷ 3 = $80
4u à $80 x 4 = $320
28.
Amount of paint used to paint 4 room = 1/6 x 24 = 4 litres
Amount of paint used to paint 1 room = 4 litres ÷ 4 = 1 litre
29.
Area of unshaded triangle = 1/2  x 10 x 4 = 20
Area of rectangle = 10 x 7 = 70
20 / 70  =  2 / 7
30.
29 x 2 + 1 = 59
59 x $0.50 = $29.50



I will discuss the answers tomorrow in class. Don't worry! :D

Love,
Ms Reena






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