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Earn +20 ptsQ: Can you Describe an algorithm for adding and subtracting decimal numbers?
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Continue Learning about Math & Arithmetic
When subtracting or adding numbers in scientific notation why do the exponents need to be the same?
This is effectively the same as lining up the decimal points when adding or subtracting ordinary decimal fractions.
Why it is important to line up decimal numbers by their play value when you add or subtract them?
This is true for adding and subtracting ALL numbers, not just decimal representations.
When adding or subtracting decimals the decimal point must be in line for all numbers?
Yes.
Which of these rules is applicable to subtracting two values that have different numbers of decimal places for example subtracting 2.1 from 2.15?
None of the following rules are applicable.
When do you need to write zero as a placeholder when adding and subtracting decimals?
Adding decimal same as adding whole numbers
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