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JAMB Mathematics 2014 Paper
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© africaexams.com
Question : 3
Total: 47
Express the product of 0.00043 and 2000 in standard form.
8.6 x 10
-3
8.3 x 10
-2
8.6 x 10
-1
8.6 x 10
Validate
Solution:
0.00043 x 2000
= 43 x 10
-5
x 2 x 10
3
= 43 x 2 x 10
-5+3
= 86 x 10
-2
= 8.6 x 10
1
x 10
-2
= 8.6 x 10
-1
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