几道数学题,要递等式(拖式计算)写出来(111+999)/〖56*(3/7-3/8)〗200.5%+2.005*490+0.2005*50003333*3333+9999*88891/1*4+1/4*7+1/7*10+……+1/97*100
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![几道数学题,要递等式(拖式计算)写出来(111+999)/〖56*(3/7-3/8)〗200.5%+2.005*490+0.2005*50003333*3333+9999*88891/1*4+1/4*7+1/7*10+……+1/97*100](/uploads/image/z/440726-14-6.jpg?t=%E5%87%A0%E9%81%93%E6%95%B0%E5%AD%A6%E9%A2%98%2C%E8%A6%81%E9%80%92%E7%AD%89%E5%BC%8F%EF%BC%88%E6%8B%96%E5%BC%8F%E8%AE%A1%E7%AE%97%EF%BC%89%E5%86%99%E5%87%BA%E6%9D%A5%28111%2B999%29%2F%E3%80%9656%2A%283%2F7-3%2F8%29%E3%80%97200.5%EF%BC%85%2B2.005%2A490%2B0.2005%2A50003333%2A3333%2B9999%2A88891%2F1%2A4%2B1%2F4%2A7%2B1%2F7%2A10%2B%E2%80%A6%E2%80%A6%2B1%2F97%2A100)
几道数学题,要递等式(拖式计算)写出来(111+999)/〖56*(3/7-3/8)〗200.5%+2.005*490+0.2005*50003333*3333+9999*88891/1*4+1/4*7+1/7*10+……+1/97*100
几道数学题,要递等式(拖式计算)写出来
(111+999)/〖56*(3/7-3/8)〗
200.5%+2.005*490+0.2005*5000
3333*3333+9999*8889
1/1*4+1/4*7+1/7*10+……+1/97*100
几道数学题,要递等式(拖式计算)写出来(111+999)/〖56*(3/7-3/8)〗200.5%+2.005*490+0.2005*50003333*3333+9999*88891/1*4+1/4*7+1/7*10+……+1/97*100
(111+999)/〖56*(3/7-3/8)〗
=111(1+9)/〔24-21〕
=1110 /3
=370
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(10+490+500)
=2.005×1000
=2005
3333*3333+9999*8889
=3333×(3333+3×8889)
=9999×(1111+8889)
=9999×10000
=99990000
1/1*4+1/4*7+1/7*10+……+1/97*100
=(1-3/4)+(3/4-5/7)+(5/7-7/10)+……+(65/97-67/100)
=1-67/100
=33/100
(111+999)/〖56*(3/7-3/8)〗
=111(1+9)/〔24-21〕
=1110 /3
=(1200-90)/3
=400-30
=370
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(1+490+500)
=2.00...
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(111+999)/〖56*(3/7-3/8)〗
=111(1+9)/〔24-21〕
=1110 /3
=(1200-90)/3
=400-30
=370
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(1+490+500)
=2.005×991
=(2+0.005)+(1000-9)
=2000-18+5-0.045
=1986.955
3333*3333+9999*8889
=3333*3*1111+9999*8889
=9999*(1111+8889)
=9999×10000
=99990000
1/1*4+1/4*7+1/7*10+……+1/97*100
=1*(1/4)+(1/4)*(1/7)+(1/7)*(1/10)+...(1/97)*(1/100)
...不学数学5年多,公式都忘了,做不下去了,不好意思啊
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(111+999)/〖56*(3/7-3/8)〗
=111(1+9)/〔24-21〕
=1110 /3
=370
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(1+490+500)
=2.005×991
=1986.955
3333*3333+...
全部展开
(111+999)/〖56*(3/7-3/8)〗
=111(1+9)/〔24-21〕
=1110 /3
=370
200.5%+2.005*490+0.2005*5000
=2.005+2.005×490+2.005×500
=2.005×(1+490+500)
=2.005×991
=1986.955
3333*3333+9999*8889
=3333×(3333+3×8889)
=9999×(1111+8889)
=9999×10000
=99990000
1/1*4+1/4*7+1/7*10+……+1/97*100
=(1-3/4)+(3/4-5/7)+(5/7-7/10)+……+(65/97-67/100)
=1-67/100
=33/100
收起