exponents worksheets grade 8 | worksheet 3
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−−
−
−
− −
m n
m n
866
6
m
n=
−
−
x2
3 100x =
m8 9 849 7m m− −=
b8 3
8116
4
bb
−+
=
37−3( 7)−
37 (7 7 7) 343− = − = −
3( 7) ( 7) ( 7) ( 7) 343− = − − − = −
30.3 27P x= + x
30.3(7) 27 102.9 27 129.9P = + = + =
( )35 15 8 5−
( )3115 3
3+
( ) ( )35 15 8 5 125 120 5 5 5 1− = − = =
( ) ( )31 1 4215 3 15 27 14
3 3 3+ = + = =
8 14( 7) ( 7)− −
63
2
5
−
+ − − = − =
( ) − = − =
−−
−−
− −
−
− − −
−
−
−= − =
−
= −
= =
−
− −
+
− − − −
−
− − −
= =
=
= =
=
m n
m n
866
6
m
n=
−=
86 6
8
m n
m n
− =
− =
m n
m n 16m = 8n =16
16 8 8
8
66 6
6
−== =
−
−
− − + + = =
=
= =
=
33 3 6 0
3 6
(2.5)(2.5) 2.5 1
(2.5) (2.5)
+ −
−= = =
x2
3 100x =
( )
=
=
=
= =
=
m8 9 849 7m m− −=
− −
− −
− −
=
=
=
− = −
=
=
b
−+
=
−+
− − +
− + +
=
=
=
− + = +
− =
= −
= −
11149,600,000,000 1.496 10= 60.000007 7 10−=
73.2 1052.01 10−
73.2 10 32000000 =52.01 10 0.000021− =
8783700000 7.837 10=
( ) ( )6 58.5 10 7.3 10 +
( ) ( ) ( ) ( ) + = +
= +
=
=
( ) ( )8 160.5 10 2.5 10−
( ) ( )8 16 8 ( 16)
23
0.50.5 10 2.5 10 10
2.5
0.2 1024
2 10
− − − =
=
=
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1. If you raise zero to any number, it will still be zero.2. The first time exponents was used was way back in the 15th century.3. Robert Recorde took it further in the next century and developed the exponents system
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