Question

[Trần Ngọc Linh]

Tính giá trị biểu thức :

a ) 12,78 : 0,4 + 51 ,92

=

=

b ) 215 ,34 - 38,9 : 0,5

=

=

c ) (34,6 + 13,82) * 2,1

=

=

d ) (58,34 - 21,7 ) : 5

=

=

Answer 1

[Nguyễn Nam]

a) \(12,78:0,4+51,92\)

\(=31,95+51,92\)

\(=83,87\)

b) \(215,34-38,9:0,5\)

\(=215,34-77,8\)

\(=137,54\)

c) \(\left(34,6+13,82\right).2,1\)

\(=48,42.2,1\)

\(=101,682\)

d) \(\left(58,34-21,7\right):5\)

\(=36,64:5\)

\(=7,328\)