数学题想一想9-2=8-( )=7-( )=6-( )=5-(

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数学题想一想9-2=8-()=7-()=6-()=5-(数学题想一想9-2=8-()=7-()=6-()=5-(数学题想一想9-2=8-()=7-()=6-()=5-(9-2=8-(1)=7-(0)=

数学题想一想9-2=8-( )=7-( )=6-( )=5-(
数学题想一想9-2=8-( )=7-( )=6-( )=5-(

数学题想一想9-2=8-( )=7-( )=6-( )=5-(
9-2=8-( 1)=7-(0 )=6-( -1)=5-( -2)

9-2=8-(1 )=7-( 0)=6-(-1 )=5-( -2)