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Question
Solve the following problem:
Perform the following operation:
1.05 × 10−4 − 9.7 × 10−5
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.
1.05 × 10−4 − 9.7 × 10−5
= 10.5 × 10−5 − 9.7 × 10−5
= (10.5 − 9.7) × 10−5
= 0.80 × 10−5
= 8.0 × 10−6
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