用简便方法计算 5237+3997 6453--1998 17.42--5.87+2.58--4.13 9.728/3.2/5
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![用简便方法计算 5237+3997 6453--1998 17.42--5.87+2.58--4.13 9.728/3.2/5](/uploads/image/z/2384-8-4.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97+5237%2B3997+6453--1998+17.42--5.87%2B2.58--4.13+9.728%2F3.2%2F5)
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用简便方法计算 5237+3997 6453--1998 17.42--5.87+2.58--4.13 9.728/3.2/5
用简便方法计算 5237+3997 6453--1998 17.42--5.87+2.58--4.13 9.728/3.2/5
用简便方法计算 5237+3997 6453--1998 17.42--5.87+2.58--4.13 9.728/3.2/5
5237+3997
=5237+4000-3
=9237-3
=9234
6453--1998
=6453-2000+2
=8453+2
=8455
17.42--5.87+2.58--4.13
=(17.42+2.58)-(5.87+4.13)
=20-10
=10
9.728/3.2/5
=9.72÷(3.2×5)
=9.72÷16
=0.6075