A-A+
能简算就要简算.①58×1110+38÷1011②1.25×7×0.8③7.28-3.14+
问题详情
①
参考答案
①58×1110+38÷1011
=58×1110+38×1110,
=(58+38)×1110,
=1×1110,
=1110;
②1.25×7×0.8
=1.25×0.8×7,
=1×7,
=7;
③7.28-3.14+1.72-2.86
=7.28+1.72-(3.14+2.86),
=9-6,
=3;
④118÷[910-(25+14)]
=118÷[910-1320],
=118÷14,
=112;
⑤(112+19-318)×36
=112×36+19×36-318×36,
=3+4-6,
=1;
⑥12+14+18+116+132
=1632+832+432+232+132,
=3132.
考点: