14+6+28=
[ ]
|
A.78 |
B.20 |
C.48 |
D.55 |
“67-20-39○83-(90-15)”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
C.= |
D.- |
14+6+28=
[ ]
|
A.78 |
B.20 |
C.48 |
D.55 |
“67-20-39○83-(90-15)”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
C.= |
D.- |