Think about the number next to the decimal, can it round the number before the decimal point?. if so change it. if not just leave it like that. for example if you estimate 13.33 it would equal to 13. 5 or more up the score. 4 or less drop the rest. hope this helps!
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To estimate, you round the number to the nearest 10 and add, subtract, divide, or multiply. If the number is a decimal (ex. 12.132), you would round it to 12, and then round that to 10.
to find a low estimate for the product of two decimals, round both factors
The estimate would be 110. This is so because if you round 43, you get 40. I'd you round 68, you get 70. 40+70=110.
1333.3333
1333 and 1/3