Question

a) (128,4 -73,2) : 2,4 - 18,32

Answer 1

\(=55,2:2,4-18,32\)

  \(=23-18,32\)

  \(4,68\)

Answer 2

\(a)\left(128,4-73,2\right)\div2,4-18,32\)

\(=55,2\div2,4-18,32\)

\(=23-18,32\)

\(=4,68\)

Answer 3

\(\left(128,4-73,2\right):2,4-18,32\)

\(=55,2:2,4-18,32\)

\(=23-28,32\)

\(=4,68\)

hok tốt!