| Addition and subtraction rules |
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| • | Rule for addition
and subtraction: the |
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| answer can’t have
more nos. after the |
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| decimal pt than
the original no with the |
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| fewest nos after
the decimal. |
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| • | What is the
result of adding 8.355, 4.687 x |
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| 10-3
and 99.1568? |
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