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.

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