WEBVTT
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Find the sum.
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Hint: add the ones then the tens.
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What do you do if you have more than 10 ones?
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First, we need to add the ones, seven plus five: seven, eight, nine, 10, 11, 12.
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We can write the two in the ones column, and we need to carry the 10 across to the tens column.
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Now when we add in the tens column, we need to add four and one, which makes five.
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45 add seven is 52.