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请你来算一算 能简算的要简算.1115÷[10×(23+45)]34×813+513×34-
问题详情
参考答案
(1)1115÷[10×(23+45)],
=1115÷[10×2215],
=1115÷443,
=120;
(2)34×813+513×34-34,
=34×(813+513-1),
=34×0,
=0;
(3)(14+16)÷12-23×14,
=512÷12-23×14,
=56-16,
=23;
(4)13×45÷23,
=415÷23,
=25;
(5)(23-12)÷56,
=16÷56,
=15;
(6)(16+710-415)×30,
=16×30+710×30-415×30,
=5+21-8,
=26-8,
=18.
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