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54+86
2.0999999999999996
1000
Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference
1,400
rounding
46.78-18.55 and estimate each sum or difference = 28.23
54+86
2.0999999999999996
5.13+2.28=7.41
I ask this QU. so it is stupid i have to answer it :(
7.000
1000
10.91
Sum is the result of an addition problem, while difference is the result of a subtraction problem. Addend Subtractend + Addend - Subtractor Sum Difference
1,400
Notice that each of the three numbers is rather close to 9,000. The estimated sum is 27,000.