14.直接写出得数.
| 1÷$\frac{4}{9}$= | $\frac{3}{4}$×$\frac{5}{9}$= | $\frac{2}{3}$+$\frac{1}{4}$= |
| 2-$\frac{3}{5}$= | 4.2×0.5= | 6.4-3.2= |
| 960÷60= | 0.37+0.73= | 10÷10%= |
13.下列各数由小到大排列正确的是( )
| A. | 0.65 $\frac{3}{4}$ $\frac{7}{9}$ | B. | $\frac{7}{9}$ $\frac{3}{4}$ 0.65 | C. | 0.65 $\frac{7}{9}$ $\frac{3}{4}$ |
9.下面分数中,不能化成有限小数的是( )
| A. | $\frac{2}{3}$ | B. | $\frac{3}{15}$ | C. | $\frac{3}{12}$ | D. | $\frac{1}{4}$ |
8.用四舍五入法把5.995保留两位小数是( )
0 136359 136367 136373 136377 136383 136385 136389 136395 136397 136403 136409 136413 136415 136419 136425 136427 136433 136437 136439 136443 136445 136449 136451 136453 136454 136455 136457 136458 136459 136461 136463 136467 136469 136473 136475 136479 136485 136487 136493 136497 136499 136503 136509 136515 136517 136523 136527 136529 136535 136539 136545 136553 199269
| A. | 5.99 | B. | 6.0 | C. | 6.00 | D. | 5.00 |