我是小zz123456
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3.46 X 94.34 + 0.54 X 94.34 - 19.4 X 19.4
= 94.34 X ( 3.46 + 0.54 ) - 19.4"
= 94.34 X ( 3.5 + 0.5 ) - ( 9.7 X 2 )"
= 94.34 X 4 - ( 97 X 0.2 )"
= 9434 X 0.04 - 97" X 0.04
= 0.04 X ( 9434 - 97" + 3" - 3" )
= 0.04 X [ 9434 - 3" - ( 97" - 3" ) ]
= 0.04 X [ 9434 - 9 - ( 97 + 3 )( 97 - 3 ) ]
= 0.04 X ( 9425 - 94 X 100 )
= 0.04 X ( 9425 - 9400 )
= 0.04 X 25
= 4 X 0.25
= 1
1年前
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