73-(20+40)=
[ ]
|
A.42 |
B.64 |
C.13 |
D.55 |
“82-(82-74)○36+(63-10)”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
C.= |
D.+ |
“90-(20+30)○17+(70-47)”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
C.= |
D.+ |
“26+34-12○84-54+26”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
C.= |
D.+ |