The document contains a mathematics worksheet with 16 exercises involving operations with powers of ten and scientific notation. The exercises cover writing numbers in the form of a single power, operations with powers of ten, converting between standard and scientific notation, and completing number expressions in scientific notation.

1. CCS Mathematics 15 Oct. 2014
G8 Worksheet (powers)
Exercise n°1
Write in the form of one power:
a. 10345  10  234
b. 1076  10  678
c. 4750  4542
d. 10  780  10  245
e. 1049  1051
f. 7  567  7333
Exercise n°2
Write in the form of one power each of the following :
g. 10345  10  834
h. 1076  10  178
i. 4750  4502
j. 10  785  10  145
k. 1049  1056
l. 7  564  7233
Exercise n°3
Give the decimal form of each of the following :
a) 103+105
b) 101+108
c) 102+103
d) 104+103
e) 107+106
f) 101+101
.
Exercise n°4
Write in the form of power of 10
a) 103
104
b) 10-210-3
c) 10-3102
d) 10-510
Exercise n°5
Write in the form of power of 10 :
13
10
a) 2
10
10 
5
b) 3
10

3
10
c) 2
10

25
10

d) 25
10

1230
10

e) 1231
10

f)
5 3
10 10
7
10
g)
4
2
10
10
1 7
10 
10
h)
6
2
2
6
10
10
10
10
 
i)
10
10 
340
6
342
3
10
10
 
j)
2
10
 
  2
4 7
3 2
6
5 3
4
10 10
10
10
10
10
10 







Exercise n°6
Write in the form of power 10.
a) 10410-210 b) 10-310210-2
c)
1
5 10
d)
1 
  
6 4
3 10 10
10
Exercise n°7
Write in the form of power of 10.
9
10
a) 4
10
10
3
 b) 5
10
2
10
c) 5
10
3 5
10 
10
d) 3 5
10 10




2. Exercise n°8
Recopy and complete :
a) 10….104=103
b) 10….10-4=10-3
Exercise n°9
Recopy and complete :
10
....
a) 10
10
3
 b)
3
....
2
10
10
10
  c)
8
5
10
....
10
10

d)
9
5 ....
10 10 
2
10
10



Exercise n°10
Give three different forms o the following :
a) 4.123104
b) 54110-1
c) 0.123103
d) 21.4105
Exercise n°11
Give the scientific notation of the following
a) 12.37 b) –1394000 c) 13.7103
d) –54.36
Exercise n°12
Give the scientific notation of the following:
a) 0.5105
b) –0.00147 c) 64510-5
d) 500010-3
Exercise n°13
Give the scientific notation of the following:
a) 14105
b) 1410-5
c) –1510-7
d) 0.047103
e) 3457210-3
f) –452210-2
g) 0.0510-2
h) 0.210-4
Exercise n°14
Recopy and complete ::
a) –3.754=-37540010….
b) 34572103=…………106
Exercise n°15
Recopy and complete :
a) 0.0004=410….
b) 0.5710-2=……….105
Exercise n°16
Recopy and complete :
a) 3107=0.0310….
b) –5.21104=……….10-3