计算(能简算的简算,写出必要的过程)9.07-22.78÷3.4 &nb...

2025-01-04 15:30:41
推荐回答(1个)
回答1:

①9.07-22.78÷3.4 
=9.07-6.7
=2.37

②32÷0.25÷0.4
=32÷(0.25×0.4)
=32÷0.1
=320

③9.3÷0.125÷8
=9.3÷(0.125×8)
=9.3÷1
=9.3

④75.6÷13.5-(3.6+1.78)
=5.6-5.38
=0.22

⑤2.3+3.91÷(22-19.7)
=2.3+3.91÷2.3
=2.3+1.7
=4

⑥18-(1.4+1.25×2.4)
=18-(1.4+3)
=18-4.4
=13.6

⑦[15.2+(8.4-4.5×0.8)]÷1.6 
=[15.2+(8.4-3.6)]÷1.6
=[15.2+4.8]÷1.6
=20÷1.6
=12.5

⑧6.75÷[0.9÷(0.3×0.4)]
=6.75÷[0.9÷0.12]
=6.75÷7.5
=0.9