Question

Tính thuận tiện:

a) \(3,27\text{×}1,63\text{×}6,73\text{×}1,63\)

b) \(12,87\text{×}0,5+87,13\text{×}0,5\)

Answer 1

a: Sửa đề: 3,27*1,63+6,73*1,63

=1,63*(3,27+6,73)

=1.63*10=16,3

b: =0,5(12,87+87,13)=0,5*100=50

Answer 2

A)=1,63 × (3,27 + 6,73)

    =1,63 × 10

    =16,3

B)=0,5 × (12,87 + 87,13)

    =0,5 × 100

    =50

Answer 3

\(a,3,27.1,63.6,73.1,63\)

\(=1,63.\left(3,27+6,73\right)\)

\(=1,63.10\)

\(=16,3\)

\(b,12,87.0,5+87,13.0,5\)

\(=0,5.\left(12,87+87,13\right)\)

\(=0,5.100\)

\(=50\)