9+(56-8)=
[ ]
|
A.57 |
B.34 |
C.54 |
D.75 |
74-(3+17)=
[ ]
|
A.57 |
B.34 |
C.54 |
D.45 |
42+30-6=
[ ]
|
A.66 |
B.38 |
C.58 |
D.56 |
70+8-40=
[ ]
|
A.66 |
B.38 |
C.58 |
D.83 |
26-8+40=
[ ]
|
A.66 |
B.38 |
C.58 |
D.85 |
76-50+70=
[ ]
|
A.18 |
B.90 |
C.96 |
D.69 |
47-20-9=
[ ]
|
A.18 |
B.90 |
C.96 |
D.81 |
54+30+6=
[ ]
|
A.18 |
B.90 |
|
C.96 |
D.81 |
,表中各种树的总棵数是
[ ]
|
A.80 |
B.81 |
|
C.82 |
D.83 |
74-7=
[ ]
|
A.84 |
B.67 |
|
C.27 |
D.7 |