问题
解答题
|
答案
(1)710-18×4,
=710-72,
=638;
(2)5.4÷18+12,
=0.3+12,
=12.3;
(3)2.25×18+125×0.18,
=2.25×18+1.25×18,
=(2.25+1.25)×18,
=3.5×18,
=63.
|
(1)710-18×4,
=710-72,
=638;
(2)5.4÷18+12,
=0.3+12,
=12.3;
(3)2.25×18+125×0.18,
=2.25×18+1.25×18,
=(2.25+1.25)×18,
=3.5×18,
=63.