题目内容
脱式计算.
30÷15+30×15
(564-18×24)÷12
576÷(33+15)×26
901-[36×(350÷14)].
30÷15+30×15
(564-18×24)÷12
576÷(33+15)×26
901-[36×(350÷14)].
(1)30÷15+30×15
=2+450
=452;
(2)(564-18×24)÷12
=(564-432)÷12
=132÷12
=11;
(3)576÷(33+15)×26
=576÷48×26
=12×26
=312;
(4)901-[36×(350÷14)]
=901-[36×25]
=901-900
=1.
=2+450
=452;
(2)(564-18×24)÷12
=(564-432)÷12
=132÷12
=11;
(3)576÷(33+15)×26
=576÷48×26
=12×26
=312;
(4)901-[36×(350÷14)]
=901-[36×25]
=901-900
=1.
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