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Question
Solve the following problem:
Perform the following operation:
4.11 × 10−3 + 8.1 ×10−4
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Solution
To perform an addition/subtraction operation, first, the numbers are written in such a way that they have the same exponent. The coefficients are then added/subtracted.
4.11 × 10−3 + 8.1 ×10−4
= 41.1 × 10−4 + 8.1 × 10−4
= (41.1 + 8.1) × 10−4
= 49.2 × 10−4
= 4.92 × 10−3
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