3 years ago

Rounding or compatible numbers to estimate the sum of 87+34=

2 answers:

7 0

We are simplifying this so they are easier to add in your head.

87+33 is easier math to do in your head

so our new estimated number would be 120

6 0

If you are just trying to estimate count 8 and 3 together but the answer is 121

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I don't understand your question, what exactly am I calculating here if there are no digits? Please elaborate. Thank you

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xz_007 [3.2K]

Answer:

The ratio 450 : 200 can be reduced to lowest terms by dividing both terms by the GCF = 50 :

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