问题
解答题
计算下面各题.
510÷5÷2=
639÷3-48=
380×(132-127)=
124+171÷3=
答案
(1)510÷5÷2
=510÷(5×2)
=510÷10
=51;
(2)639÷3-48
=213-48
=165;
(3)380×(132-127)
=380×5
=1900;
(4)124+171÷3
=124+57
=181.
计算下面各题.
510÷5÷2=
639÷3-48=
380×(132-127)=
124+171÷3=
(1)510÷5÷2
=510÷(5×2)
=510÷10
=51;
(2)639÷3-48
=213-48
=165;
(3)380×(132-127)
=380×5
=1900;
(4)124+171÷3
=124+57
=181.