A-A+
47×56+16×474÷45-45÷413×(213+211)×11(38+127)×16
问题详情
参考答案
①47×56+16×47,
=47×(56+16)
=47×1,
=47;
②4÷45-45÷4,
=4×54-45×14,
=5-15,
=445;
③13×(213+211)×11,
=( 13×213+13×211)×11,
=(2+2611 )×11,
=22+26,
=48;
④(38+127)×16+1127,
=38×16+1627+1127,
=6+(1627+1127),
=6+1,
=7;
⑤89×25÷815,
=89×25×158,
=23;
⑥23+(47+12)×725,
=23+47×725+12×725,
=23+425+750,
=23+310,
=2930;
⑦813÷7+17×513,
=(813+513)×17,
=1×17,
=17;
⑧18×58+18×41+18,
=18×(58+41+1),
=18×100,
=12.5;
⑨25×15+40%×45,
=25×15+25×45,
=25×(15+45),
=25;
⑩59÷5+5÷59,
=59×15+5×95,
=19;
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