直接写出得数.777×9+111×37=5--=+-+=÷×5=72÷1.2+72÷1.8=9+3÷7÷6×14=+++=8.4×13-3×8.4=60×(1--)=

发布时间:2020-08-09 14:49:18

直接写出得数.
777×9+111×37=5--=+-+=÷×5=72÷1.2+72÷1.8=9+3÷7÷6×14=+++=8.4×13-3×8.4=60×(1--)=×996=

网友回答

解:(1)777×9+111×37,
=111×63+111×37,
=111×(63+37),
=111×100,
=11100;

(2)5--,
=5-(+),
=5-1,
=4;

(3)+-+,
=(-)+(+),
=+1,
=1;

(4)÷×5,
=×5×5,
=3×5,
=15;

(5)72÷1.2+72÷1.8,
=60+40,
=100;

(6)9+3÷7÷6×14,
=9+××14,
=9+×14×,
=9+6×,
=9+1,
=10;

(7)+++,
=(+)+(+),
=+1,
=1;

(8)8.4×13-3×8.4,
=8.4×(13-3),
=8.4×10,
=84;

(9)60×(1--),
=60×1-60×-60×,
=60-20-30,
=40-30,
=10;

(10)×996,
=×(995+1),
=×995+×1,
=994+,
=994;
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