Explain what happens when you add and subtract ten to a multiple of ten
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I can explain what happens when you add and subtract ten to a multiple of ten.
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Ten can be added to or subtracted from a multiple of ten.
When you add ten to a multiple of ten the tens number increases by one
When you subtract ten from a multiple of ten the tens number decreases by one
If 3 + 1 is equal to 4 then 3 tens + 1 ten is equal to 4 tens which is equal to 40
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