1.11×9.9+8.88×8.9怎么简算?八分之七乘八的多少?
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1.11×9.9+8.88×8.9怎么简算?八分之七乘八的多少?
1.11×9.9+8.88×8.9怎么简算?
八分之七乘八的多少?
1.11×9.9+8.88×8.9怎么简算?八分之七乘八的多少?
1.11×9.9+8.88×8.9
=1.11×9.9+1.11×8×8.9
=1.11×(9.9+71.2)
=1.11×81.1
=90.021
7/8×8=7
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八分之七乘八=7,1.11×9.9+8.88×8.9=1.11x9.9+1.11x8x8.9=1.11(9.9+71.2)=1.11x79.2=8.88
1.11×9.9+8.88×8.9
=1.11×(10-0.1)+8.88×(10-1.1)
=11.1-0.111+88.8-9.768
=99.9-(0.111+9.768)
=99.9-9.879
=90.021
7/8×8=7
1.11×9.9+8.88×8.9 明教为你解答 求采纳 不懂请追问 谢谢
=1.11×(10-0.1)+8.88×(10-1.1)
=11.1-0.111+88.8-9.768
=99.9-(0.111+9.768)
=99.9-9.879
=90.021
7/8*8=7
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