是27。
,那么女生人数是男生的( )
B .
C .
D .
=
=
=( )
C . 1
D . 1
10×12= | 1﹣0.04= | 2+5.8= | 4.5÷0.45= |
| 1.2﹣ |
| 2.5×4÷4= |
| 0÷( | ||
=
=
=
=
=
=
=
,相当于把这个数( )。
,乙车每次运
吨。单独运这批货物,甲车要次能运完,乙车要次能运完。
+
÷
÷
×1
×
×
为0.7,甲数扩大10倍后是( )
÷
= 1-
=
×
=
+
=
4×
=
×
=
+
= 0.72÷0.6=
。去年造林多少公顷?
1÷
=
+
=
÷
=
×
= 8÷
=
0.5×0.3= 8÷0.2= 0.2×300= 7.65-1.2= 0.36÷0.4=
,桃树棵数是梨树的
,已知苹果树有1680棵,梨树有多少棵?
(a、b≠0,a>b)
小时走
千米,他平均每小时能走千米。
1-0.92=
-
=
×3.2=
÷
×5=
3.5+4.28=
×
=
÷
= 99×0.9+0.9=
×16 24×
÷2.4
÷ 
1÷1
÷15
÷14
×
÷ 
0.8÷
180÷
×
×
÷
× 
1÷0.25= 15×60= 72×25%=
1.1-0.01= 12÷
= 
24×(
)=