题目内容
混合运算.
| 54×12-60÷3 | 54÷3×(120-60) | 27×63+63×73 | 4500-50×23+4 |
(1)54×12-60÷3,
=648-20,
=628;
(2)54÷3×(120-60),
=54÷3×60,
=18×60,
=1080;
(3)27×63+63×73,
=(27+73)×63,
=100×63,
=6300;
(4)4500-50×23+4,
=4500-1150+4,
=3350+4,
=3354.
=648-20,
=628;
(2)54÷3×(120-60),
=54÷3×60,
=18×60,
=1080;
(3)27×63+63×73,
=(27+73)×63,
=100×63,
=6300;
(4)4500-50×23+4,
=4500-1150+4,
=3350+4,
=3354.
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