The standard form of 720 ×106 is ________ .
7200000
7200 ×105
7.2 ×108
none of these
Which of the following is a rational number .
√3
0.6
√8
√7
Round 68786 to the nearest 1000.
69000
68000
68600
68700
62×19 is aproximately equal to _________ .
3600
3000
1200
2000
100 m = ______ .
1 km
10 km
1000 km
0.1 km
A centimetre is __________ part of a metre .
Ten
Tenth
a hundred
a hundredth
If un+1=un+5 and u1=3,then u3=_______ .
3
8
13
18
250 cm = _____ .
2.50 m
25 m
250 m
2500 m
The standard form of 600000 is ________ .
600000
6×105
60 ×104
None of these
Write 5.58 to one decimal place .
5
5.6
5.7
5.59
