I am realising that the question can be asking two things. Q1) what is 720 rounded to the nearest 10? A1) 720, as 720 is divisible by 10 Q2) A number has been rounded to the nearest 10, and the answer is 720, but what was the original number? A2) the number could have been any number between 715 and 724.99999.... hope it helps
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724 rounded to the nearest ten is 720. When rounding a number to the nearest ten, you look at the digit in the ones place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the ones place is 4, so we round down to the nearest ten, which is 720.
50
453 + 56 = 509 so nearest 10 is 510
Seventy-two tens is equal to 720. This is calculated by multiplying 72 by 10, which gives you the total value in the base-10 system. So, 72 tens represent the numerical value of 720.
7 is more than half way to the next ten, so 87 to the nearest 10 is 90.