1.2÷12%= | 9﹣1.9= | 7.2÷6= | 0.24× |
| 3.14×22= | | 1+30%= |
| 0.52= |
| |




=( )
B . 2
C . 1
=( )
B . a÷
C . a÷
D . 无法确定
14×
14
÷1
9×
÷9
÷
+
×
÷
÷

。第一小组有多少人?(先画图分析,再解答)
×2.8 =
-
×
=
÷
=
÷3=
=
120×
= 18×
×
= 1÷
=
÷
= 0÷
=
小时行
千米,那么她1小时行千米,行1千米要用小时.
8×
= 2.8﹣
=
×1=
÷9=
×20=
+
=
÷
=
+
=
×0.2= 1÷
=
÷9=
×
=
÷
= 1﹣
= 150%﹣150%=
24÷
=
÷4= 0÷
=
×
=
×24×
=
×0=
×
= 6
= 3.6×
=
×70=
+
=
﹣0= 55%﹣
= 2.4÷0.4= 2÷0.5=
×
=
×2.4=
÷
=
×
=
4.5÷
= 20×40%= 1-25%= 8:10=
×
=
÷
= 9÷30% =
+25%=
小东养了一些金鱼,有红色、黄色和黑色三种颜色,其中红金鱼有15条,是三种金鱼里数量最多的,小东一共养了多少条金鱼?
D . 黑金鱼占总数量的
,梨树有多少棵?
列式:
,梨树有多少棵?
列式:
,梨树有多少棵?
列式:
a÷
a×
(a≠0)
÷3×2
×
<
是15;比24多60%是。
=b÷
,则a>b。( )
5.01-1.8=
×
= 0.24×5= 4÷
+
=
+
= 0.91÷0.7= 0.35÷
= 1÷0.1-1×0.1=