估计一下,下面哪些算式的得数比
2000大[
]|
A .4160-2870 |
B .1682+850 |
C .1468+878 |
估计一下,下面哪些算式的得数比
2000大[
]|
A .395+1860 |
B .5430-3160 |
C .6180-5090 |
258
+132=390,用( )来验算.[
]|
A .390-132=258 |
B .132+258=390 |
|
C .390-258=132 |
D .258-132=126 |