找规律,填算式,(1)1/5+2/5+3/5=2/5*3=6/5.(1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )

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找规律,填算式,(1)1/5+2/5+3/5=2/5*3=6/5.(1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )
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找规律,填算式,(1)1/5+2/5+3/5=2/5*3=6/5.(1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )
找规律,填算式,(1)1/5+2/5+3/5=2/5*3=6/5.
(1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )

找规律,填算式,(1)1/5+2/5+3/5=2/5*3=6/5.(1)1/5+2/5+3/5=2/5*3=6/5 (2)1/7+2/7+3/7+4/7+5/7=3/7*5=15/7 (3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( )=( ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( )*( )=( )
(3)1/7+2/7+3/7+4/7+5/7+6/7+7/7=4/7*( 7 )=( 4 ) (4)1/11+2/11+3/11+4/11+5/11+6/11+7/11+8/11+9/11=( 5/11 )*( 9 )=( 45/11 )