Use estimation to determine which calculation is incorrect.

A.

B.

C.

D.


Answer: C

Mathematics

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Solve. Simplify the answer.The total length of a bicycle race is  of a mile. Chloe has completed  of a mile. How much does she have left to complete?

A.  mi
B.  mi
C.  mi
D.  mi

Mathematics

Find the difference and simplify the answer.  - 

A. 1
B. 25
C.
D.

Mathematics

Subtract.18.56 - 12.184

A. 31.744 B. 6.476 C. 30.744 D. 6.376

Mathematics

Solve.On a recent trip, Asha drove 258 miles on 10 gallons of gasoline. How many miles per gallon did she average? 

A. 322  miles per gallon
B.  miles per gallon
C. 2612 miles per gallon
D. 25 miles per gallon

Mathematics