750+708×32
253×203-103×253
3060÷36-322÷46
(25+73÷73+25)×101
3796÷52×26-1203
17×23+23×83.
分析:(1)先算乘法,再算加法;
(2)(6)運用乘法分配律簡算;
(3)先同時運算除法,再算減法;
(4)先算小括號里面的除法,再算小括號里面的加法,然后把101分解成100+1,再運用乘法分配律簡算;
(5)先算除法,再算乘法,最后算減法.
解答:解:(1)750+708×32,
=750+22656,
=23406;

(2)253×203-103×253,
=253×(203-103),
=253×100,
=25300;

(3)3060÷36-322÷46,
=85-7,
=78;

(4)(25+73÷73+25)×101,
=(25+1+25)×101,
=51×(100+1),
=51×100+51×1,
=5100+51,
=5151;

(5)3796÷52×26-1203,
=73×26-1203,
=1898-1203,
=695;

(6)17×23+23×83,
=(17+83)×23,
=100×23,
=2300.
點評:本題考查了四則混合運算,注意運算順序和運算法則,靈活運用所學的運算定律進行簡便計算.
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