“50公顷○500000平方米”,比较大小,在○里应填的符号是
[ ]
|
A.> |
B.< |
|
C.= |
D.× |
249700000
≈________亿[
]|
A .24 |
B .3 |
|
C .2 |
D .25 |
用计算器计算
3000
-25×40=[
]|
A .1640 |
B .13002 |
|
C .2000 |
D .6021 |
用计算器计算
5726
-(1726+2360)=[
]|
A .1640 |
B .13002 |
|
C .2000 |
D .6021 |
用计算器计算
5087
+1937-1003=[
]|
A .1640 |
B .13002 |
|
C .2000 |
D .6021 |
用计算器计算
6501
-519+7020=[
]|
A .1640 |
B .13002 |
|
C .2000 |
D .6021 |