# Download Level_F_Homework_ - Cleveden Secondary School

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Transcript
```Cleveden Secondary School
Level F Homework 4
Answer the following questions, showing all your working.
No calculator allowed.
1.
Write the following fractions in their simplest form:
a.
b.
c.
d.
8
7
9
10
21
81
2.
Find the prime decompositions of the following:a. 20
b.
112
c.
64
3.
Copy the diagram and
find all the missing angles.
a
110˚
c
b
d
e
4.
Tidy up the following expressions
a. 3x + 2 + 5x – x + 9
b. 11z + 5y – z + 3y + 12
5.
Find the perimeter of the following
regular pentagon.
150
300
g
f
1.7 cm
6.
Write the following numbers in scientific notation:a. 800
b.
70 000
c.
347 000
e. 0.001
f.
0.000 123 g.
0.4
d.
h.
10 million
one millionth
7.
Write the following numbers out in full :a. 4.3 x 10²
b.
8.1 x 10³
c.
1.08 x 104
e. 5.04 x 10-4 f.
4 x 10 -6
g.
1.0 x 10-6
d.
h.
1.2 x 105
4.55 x 10-5
8.
a. A biscuit factory produces two and a half million biscuits a week.
Write this number in scientific notation.
b. A quarter of a billion paper clips were sold last year.
Write this number in scientific notation.
9.
a.
b.
The thickness of a hair was measured and found to be 0.0086 mm.
Write this number in scientific notation.
A computer took 8.702 x 10-6 seconds to complete a calculation.
Write this number in full.
```
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