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递等式计算540÷(30×15÷50)6×58-(174+89)(560-18×24)÷12490+210÷(750÷250)725-(125+237)1320÷6×40+342
题目详情
递等式计算
540÷(30×15÷50) | 6×58-(174+89) | (560-18×24)÷12 |
490+210÷(750÷250) | 725-(125+237) | 1320÷6×40+342 |
▼优质解答
答案和解析
(1)540÷(30×15÷50)
=540÷(450÷50)
=540÷9
=60
(2)6×58-(174+89)
=6×58-263
=348-263
=85
(3)(560-18×24)÷12
=(560-432)÷12
=128÷12
=10…8
(4)490+210÷(750÷250)
=490+210÷3
=490+70
=560
(5)725-(125+237)
=725-125-237
=600-237
=363
(6)1320÷6×40+342
=220×40+342
=8800+342
=9142
=540÷(450÷50)
=540÷9
=60
(2)6×58-(174+89)
=6×58-263
=348-263
=85
(3)(560-18×24)÷12
=(560-432)÷12
=128÷12
=10…8
(4)490+210÷(750÷250)
=490+210÷3
=490+70
=560
(5)725-(125+237)
=725-125-237
=600-237
=363
(6)1320÷6×40+342
=220×40+342
=8800+342
=9142
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