问题
解答题
(1)738+123+362
(2)1184-816-284+116
(3)207×(410-290)
(4)862+38×(1886÷46)
(5)6000÷(7500÷25+7500÷75)
(6)492÷[(459-159)÷25].
答案
(1)738+123+362,
=738+362+123,
=1100+123,
=1223;
(2)1184-816-284+116,
=(1184-284)-(816-116),
=900-700,
=200;
(3)207×(410-290),
=207×120,
=200×120+7×120,
=24000+840,
=24840;
(4)862+38×(1886÷46),
=862+38×41,
=862+1558,
=2420;
(5)6000÷(7500÷25+7500÷75),
=6000÷(300+100),
=6000÷400,
=15;
(6)492÷[(459-159)÷25],
=492÷[300÷25],
=492÷12,
=41.