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68+69+70+71+72=( )乘以( )=( ) 21+23+25+27+29=( )乘以( )=( )
人气:468 ℃ 时间:2020-04-16 04:28:27
解答
68+69+70+71+72=(70 )乘以(5)=(350 )
21+23+25+27+29=(25 )乘以( 5)=(125 )
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