49999+4999+499+49 用简便计算怎么算?用四年级下测的简便计算做!还有一道; 1+2+3+4.在明天必须有!比如; 596-196-153-47=596-(169+153+47)=569-369=200
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![49999+4999+499+49 用简便计算怎么算?用四年级下测的简便计算做!还有一道; 1+2+3+4.在明天必须有!比如; 596-196-153-47=596-(169+153+47)=569-369=200](/uploads/image/z/754736-32-6.jpg?t=49999%2B4999%2B499%2B49+%E7%94%A8%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E6%80%8E%E4%B9%88%E7%AE%97%3F%E7%94%A8%E5%9B%9B%E5%B9%B4%E7%BA%A7%E4%B8%8B%E6%B5%8B%E7%9A%84%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%E5%81%9A%21%E8%BF%98%E6%9C%89%E4%B8%80%E9%81%93%3B+1%2B2%2B3%2B4.%E5%9C%A8%E6%98%8E%E5%A4%A9%E5%BF%85%E9%A1%BB%E6%9C%89%21%E6%AF%94%E5%A6%82%3B+596-196-153-47%3D596-%28169%2B153%2B47%29%3D569-369%3D200)
49999+4999+499+49 用简便计算怎么算?用四年级下测的简便计算做!还有一道; 1+2+3+4.在明天必须有!比如; 596-196-153-47=596-(169+153+47)=569-369=200
49999+4999+499+49 用简便计算怎么算?
用四年级下测的简便计算做!还有一道; 1+2+3+4.在明天必须有!
比如; 596-196-153-47
=596-(169+153+47)
=569-369
=200
49999+4999+499+49 用简便计算怎么算?用四年级下测的简便计算做!还有一道; 1+2+3+4.在明天必须有!比如; 596-196-153-47=596-(169+153+47)=569-369=200
49999+4999+499+49
=50000+5000+500+50-4
=55550-4
=55546
1+2+3+4.+35+36
=(1+36)×36÷2
=37×18
=666
好学的孩子
49999+4999+499+49
=50000+5000+500+50-4
=55550-4
=55546
1+2+3+4........+35+36
=(1+36)×36/2
=37×18
=666
1:=50000+5000+500+50-1-1-1-1
2:=(1+36)+(2+35)+````=(1+36)*36/2=37*18
1.`49999+4999+499+49
`=50000+5000+500+50-4
`=55546
2.1+2+3+4........+35+36
`=((1+36)*36)/2
`=666
49999+4999+499+49
=50000+5000+500+50-4
=55546
1+2+3+...+36
=(1+36)+(2+35)+..+(18+19)
=37x18
=37x20-37x2
=666
49999+4999+499+49 =49999+4999+499+49 +4-4=55550-4=55546
1+2+3+4........+35+36=1+36+2+35+...+18+19=18*37=18*40-18*3=720-54=666
(50000-1)+(5000-1)+(500-1)+(50-1)
(1+36)*36/2
49999+4999+499+49 =50000+5000+500+50-1-1-1-1
1+2+3+4........+35+36=(1+36)*36/2
49999+4999+499+49
=(50000-1)+(5000-1)+(500-1)+(50-1)
=50000-1+5000-1+500-1+50-1
=(50000+5000+500+50)-(1+1+1+1)
=55550-4
=55546
或
49999+4999+499+49
=49999+4999+499+(46+1+1+1)
=(49999+1)+(4999+1)+(499+1)+46
=50000+5000+500+46
=55546
49999+4999+499+49
=(50000-1)+(5000-1)+(500-1)+(50-1)
=(50000+5000+500+50)-(1+1+1+1)
=55550-4
=55546
1+2+3+……+35+36
=(1+36)+(2+35)+(3+34)+……+(18+19)
=18*37
=666
天!!!
自己动动脑子啊!
1、49999+4999+499+49
=(49999+1-1)+(4999+1-1)+(499+1-1)+(49+1-1)
=50000+5000+500+50-1-1-1-1
=55550-4
=55546
2、1+2+3+4........+35+36
=(4+36)*(36-3)÷2+3+2+1
=40*33/2+6
=660+6
=666