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Earn +20 ptsQ: How many different pairs add to 100?
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How many different pairs of even whole numbers add to 100?
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How many pairs of whole numbers equal 99?
An infinite amount if you add, subtract or divide them. 3 pairs if you multiply them.
What is a rule for finding number pairs that add to 100?
One rule for finding number pairs that add to 100 is to start with one number and subtract it from 100 to find the other number. For example, if one number is 75, subtracting it from 100 gives 25, so the pair is (75, 25).
What is the total of all the whole numbers from 1 to 100?
You can either just add them up or use quick logic to add them in pairs: All the numbers from 1 to 49 match up with 51 through 99 to = 49 pairs of 100 = 4900, than add the two you skipped 4900 + 50 + 100 = 5050 total
How many pairs of umbers add up to 89?
Infinitely many.
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