GCSE Mathematics Significant Figures, Powers & Roots, Decimal Places -- Units 2&3

This contains a sheet explaining the three topics separately, it then goes on to give you questions on these topics, the next pages dictates the answers in red. The last page consists of Unit 2 revision topics.

I hope this helps (:

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  • Created by: Charley
  • Created on: 05-04-12 13:39

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Page 1

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Maths Revision & Help Session
Significant Figures:

You
can us e
thi
s f
or
decimal
numb ers
and al
so whol
e numb ers.

I
f
the
fi
rst
insi
gnif
icant
number i
s a
5,
round
u p
the
last
si
gnif
ican t
number.

I
f…

Page 2

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Practice Questions:

Si
gni
fi
cant
Fi
gur
es:


1)Round
to
1 SF: A)
1368 B)
0.4782 C)
67845


D )
0.0008463
E)
3.9999 F)
9568939 G)
0.039735



2)Round
to
3 SF:
A)
1368 B)
0.4782 C)
67845


D )
0.0008463
E)
3.9999 F)
9568939 G)
0.039735

Deci
mal
Pl…

Page 3

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Answers



Si
gni
fi
cant
Fi
gur
es:


1)Round
to
1 SF: A)
10000 B)
0.5 C)
70000


D )
0.0008
E)
4 F)
100000000G)
0.04



2)Round
to
3 SF:
A)
1370 B)
0.478 C)
67800


D )
0.0008
E)
4 F)
9570000 G)
0.0397

Deci
mal
Pl
aces:


1)Round…

Page 4

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Page 5

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Unit 2 Maths Revision Topics

NUMBER

Fact
ors and Mult
ipl
es
Pr
ime
Fa ct
ors
LCM and
H CF
Square
a nd
C ube Numb er
s
Negati
ve Numb ers
Rul
e s
of
Indices
Fr
acti
o nal
and Negati
ve I
ndices
St
an dar…

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