13.计算下面各题,怎样算简便就怎样算.
①125×32×25 | ②9.04-1.23-0.77 | ③10.02-3.5+0.08-6.5 |
④3.07+5.23+6.93+4.77 | ⑤93.05+5.789-93.05 | ⑥25×36 |
12.列竖式计算.
5-0.207= | 37.82+9.6= | 30.03-0.358= |
16.62+7.9= | 82.05-0.087= | 93.07+9.307= |
11.把2.9改写成与原数相等的三位小数是( )
A. | 2.090 | B. | 2.009 | C. | 2.900 |
10.与千分位左边相邻的是( )位.
A. | 十分 | B. | 百分 | C. | 万分 |
9.52.07-0.5( )52.07-0.7.
A. | > | B. | < | C. | = |
8.0.8里面有( )0.01.
A. | 8 | B. | 80 | C. | 800 |
7.51.27-8.66-1.34的简便算法是( )
0 153406 153414 153420 153424 153430 153432 153436 153442 153444 153450 153456 153460 153462 153466 153472 153474 153480 153484 153486 153490 153492 153496 153498 153500 153501 153502 153504 153505 153506 153508 153510 153514 153516 153520 153522 153526 153532 153534 153540 153544 153546 153550 153556 153562 153564 153570 153574 153576 153582 153586 153592 153600 199269
A. | 51.27-1.34-8.66 | B. | 51.27-(1.34+8.66) | C. | 51.27-8.66+1.34 |