《《求未知加数》课件》由会员分享，可在线阅读，更多相关《《求未知加数》课件（13页珍藏版）》请在金锄头文库上搜索。
求未知加数,5+2= 10-6= 7+3= 10-5= 4+4= 9-3 = 2+8= 8-6 = 1+9= 2+4= 3+5= 4+6=,口算,7,8,10,4,6,6,10,10,8,5,2,10,填一填,10,8,7,3,6,4,5,10,5,9,2,10,10,5,4,？个,=,10个,10,-,8,2,真聪明！,想一想,8,10,+,( ),?,=,2,10,8,10,你是怎样想的？,8,10,2,2,8,2,-,=,1,7,4,6,3,5,1,江苏省电化教育馆制作,2 + ( ) = 10 ( ) + 4 = 10,( ) + 3 = 7 4 + ( ) = 9,9,7,5,3,1,江苏省电化教育馆制作,+ =10,2,4,6,8,0,8,6,4,2,10,+ =10,1,3,5,7,9,9,7,5,3,1,2+( )=10,( )+4=10,( )+3=8,( )+2=6,( )+1=7,4+( )=9,1+( )=3,5,5,4,2,6,8,6,真棒！,在（ ）填上合适的数,6+( )=10 5+( )7 10-( )=5 4+( )8 ( )+48,
