我是小小神算手.
72÷8+31=
360÷4×0= 36+75÷5=
50×2-20= 100÷5×3= 11+12×5=
分析:(1)先算除法,再算加法;
(2)先算除法,再算乘法;
(3)先算除法,再算加法;
(4)先算乘法,再算減法;
(5)先算除法,再算乘法;
(6)先算乘法,再算加法.
解答:解:
(1)72÷8+31,
=9+31,
=40;

(2)360÷4×0,
=90×0,
=0;

(3)36+75÷5,
=36+15,
=51;

(4)50×2-20,
=100-20,
=80;

(5)100÷5×3,
=20×3,
=60;

(6)11+12×5,
=11+60,
=71.
點(diǎn)評:此題主要考查整數(shù)的四則混合運(yùn)算的運(yùn)算順序,然后根據(jù)運(yùn)算順序進(jìn)行計(jì)算.
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