Question

Answer 1

a: \(4,86\times0,25\times40\)

\(=4,86\times10\)

=48,6

b: \(72,9\times99+72+0,9\)

\(=72,9\times99+72,9\)

\(=72,9\times\left(99+1\right)=72,9\times100=7290\)

c: \(0,125\times6,94\times80\)

=6,94x10

=69,4

d: \(0,8\times96+1,6\times2\)

\(=0,8\times96+0,8\times4\)

\(=0,8\times\left(96+4\right)=0,8\times100=80\)

e: \(96,28\times3,527+3,527\times3,72\)

\(=3,527\times\left(96,28+3,72\right)\)

\(=3,527\times100=352,7\)