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Building Blocks 1. SG MATHEMATICS Credit. Qu. 1. If we write the number 375 000 000 000. in the form. what is the value of n. A. B. C. 12. 11. 10. D. E. 9. 8. Qu. 2. What is the scale factor that enlarges triangle ABC to PQR. Q. 12. 25°. B. 85°. P. 9. A. 75°. 6. - PowerPoint PPT Presentation
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Building Blocks 1
SG MATHEMATICS
Credit
Qu. 1
If we write the number 375 000 000 000
3.75 10n
A B C
D E
12 11 10
9 8
in the form
what is the value of n
Qu. 2
What is the scale factor that enlargestriangle ABC to PQR
A B C
D E
2
25°
75°
85°
25°
A
B
C
P
Q
R3
9
6
12
3
4
½
1
3
Qu. 3
Given 2( ) 5f x x
A B C
D E1
Evaluate
3 9 7
2
( 2)f
Qu. 4
What is the value of:
2
327
A B C
D E9
18 6 0
Don’t understand
Qu. 5
What is the gradientof the line shown
A B C
D E
-2 2
11
5
11
3
(5, 12)2
6
Qu. 6
AB is the diameter ofthe circle centre O.
A B C
D E160°
20° 90° 70°
20°
A
B
E
OWhat is the value ofEAB
Don’t know
Qu. 7
Put in its simplest form
72
A B C
D E Don’t understand
6 2 3 8 2 18
72
Qu. 8
What is the value of:
3
216
A B C
D E27
24 64 8
Don’t understand
Qu. 9
What is the y-interceptof the line shown
A B C
D E
5 2
(5, 12)2
11
0
0 Don’t understand
Qu. 10
Simplify3 4
2
x x
x
A B C
D E
9x 5x 10x6x 4x
Qu. 11
Break the brackets
2 3 3 4x x
A B C
D E
26 12x x 26 2 12x x 26 12x x 25 3 1x x 26 12x x
Qu. 12
AB is a tangent tothe circle centre O.
A B C
D E80°
55° 45° 90°
35°A BP
O
What is the value ofROA
100°
45°
R
Qu. 13
Which of these shapes is a prism
A B C
D E2 only
1 and 3 only
1 and 4 only 4 only
2 and 4 only
1 2 3 4
Qu. 14
What is the equationof the line shown
A B C
D E
(5, 12)2
0
5 2y x 2 2y x 5 12y x
3 2y x Don’t understand
Qu. 15
Factorise
A B C
D E
2 29 4x y
3 2 3 2x y x y 9 4 9 4x y x y 9 2 2x y x y
3 4 3 4x y x y 6 2 3 2x y x y
Qu. 16
Solve the equation
A B C
D E
2 3 1 7x x
7x 7x 8x
10x 4x
Qu. 17
These two shapes are mathematically similar
A B C
D E80 cm2
60 cm2 180 cm2 160 cm2
The area of shape A is 20 cm2.What is the area of shape B?
120 cm2
A B
2 cm
6 cm
20 cm2
Qu. 18
The diagram shows a rubbish skip.
The area of the trapezium is
6.5 m2
The width of the skip is 2.2 m.
What is the volume of the
skip ?A B C
D E
14.3 m3
Don’t understand
6.5 m2
2.2 m
7.2 m3 8.7 m314.3 m3
28.6 m3
Qu. 19
What is the equation of this straight line
A B C
D E
3
(4, 9)
3
23y x 2
33y x 3y x
9
43y x 4
39y x
Qu. 20
What is the area of this triangle
A B C
D E
8 cm 10 cm
13 cm
80 cm2
40 cm2
52 cm2 65 cm2
31 cm2
Qu. 21
What is the equation of the line of symmetryfor this parabola
A B C
D E
1
5x
9
4x 5y
4y Don’t understand
Qu. 22
What is the area of this circle ?
A B C
D E
14 cm
154 cm2
22 cm2
616 cm2
O
44 cm2
28 cm2
(to nearest whole number)
Qu. 23
ABCD is a rectangle.M is the mid-point of AB.
CE is a vertical post.What is the length of CM
A B C
D E
21.6 m
Don’t understand
37.9 m 48.0 m
30.0 m
(to one decimal place)
A B
CD
E
M36 m
12 m
Qu. 24
The area of this triangleis 60 cm2
A B C
D E
6 cm
A
60 cm2
360 cm
40 cm
5 cm 20 cm
10 cm
What is the lengthof AB ?
B
C
Qu. 25
Class 3X have a maths test. The mean mark is 56% with a standard deviation of 7.4
A 3Y have better average mark but are more variable
3Y have the same maths test. Their mean mark is 64% with a standard deviation of 8.7
Which statement below is correct ?
B 3Y have better average mark but are more consistent
C 3Y have better average mark but are less variable
Qu. 26
What is the circumferenceof the circle
A B C
D E
radius = 20 cm
62.8 cm
Don’t understand
1256.6 cm
O
5026.5 cm
125.7 cm
(to one decimal place)
Qu. 27
The price of this TV hasbeen increased by 6%.
A B C
D E
£ 487.38
Don’t understand these
£ 432.20 £ 433.76
£ 27.59
What was the price before the increase ?
£ 459.79
Qu. 28
Expand and simplify
A B C
D E
3 3 2x x
23 7 6x x
23 7 5x x 23 11 6x x 23 7 6x x
23 7 6x x
Qu. 29
What is the length of the arc PQ
A B C
D E
9 cm
38.9 cm
Don’t understand
8.6 cm
O
4.3 cm
155.5 cm
(to one decimal place)55°
Qu. 30
Expand
A B C
D E
1
22 5p p
1 5
2 25p p1 5
2 25p p1 3
2 25p p1
125p p5 1
2 25p p Don’t understand
Qu. 31
What is the area of this triangle
A B C
D E
14 cm
18 cm
85°
251.0 cm2
11.0 cm2
126.0 cm2 22.0 cm2
125.5 cm2
(to 1 decimal place)
Qu. 32
ABCD is a rectangle.M is the mid-point of AB.
CE is a vertical post.What is the height of post CE?
A B C
D E
4.2 m
Don’t understand
10.0 m 4.7 m
9.1 m
(to one decimal place)
A B
CD
E
M12 m
8 m25°
Qu. 33
From A, the bearing of B is 056°.
From C, the bearing of B is
290°
Calculate angle ABC
A B C
D E
56°
Don’t understand
76° 124°
126°
A
B
C56°
N N