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BECE Mathematics 2010 Paper

Question : 36

Total: 40

Solution:

Concept:

Standard form expresses a number as

A \times 10^n

, where

1 \le A < 10

and

n

is an integer.

Explanation:

Write

4037

4037.0

Move the decimal point so that it lies just after the first non-zero digit, which is

4

This requires moving the decimal point 3 places to the left.

Moving the decimal point to the left gives a positive power of 10.

Therefore,

n = +3

and

4037 = 4.037 \times 10^3

Answer:

Option C:

4.037 \times 10^3

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