SOLUTION: Add & Subtract Mixed Number First estimate the answer. Then subtract to find the exact answer. 13(3/4)- (-2)(9/10)= Please help me!

Question 835997: Add & Subtract Mixed Number
First estimate the answer. Then subtract to find the exact answer.
13(3/4)- (-2)(9/10)=
Please help me!
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
I am only helping with the estimate.

This will be positive, since you are starting with positive and subtracting a negative number.

Approximate the first term as about , about 9.
The second term is about 2, a little less because is near to 1, and you're doubling it.

The estimate is .
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