问题 解答题
815-185-3151872+472÷(205-197)3360-360÷15×26
688÷8+37×298000-(1532+457+543)(653+1977)-(453+277)
答案

(1)815-185-315,

=815-315-185,

=500-185,

=315;

(2)1872+472÷(205-197),

=1872+472÷8,

=1872+59,

=1931;

(3)3360-360÷15×26,

=3360-24×26,

=3360-624,

=2736;

(4)688÷8+37×29,

=86+1073,

=1159;

(5)8000-(1532+457+543),

=8000-[1532+(457+543)],

=8000-(1532+1000),

=8000-2532,

=5468;

(6)(653+1977)-(453+277),

=653+1977-453-277,

=(653-453)+(1977-277),

=200+1700,

=1900.

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