14.0.15小时等于( )分.
| A. | 15 | B. | 9 | C. | 75 |
13.下面三个数中,最大的数是( )
| A. | 0.71 | B. | 0.7$\stackrel{•}{1}$ | C. | 0.$\stackrel{•}{7}$$\stackrel{•}{1}$ |
11.直接写出得数
| 3.5×6= | 2.37×100= |
| 13÷0.13= | 5.3×0.2= |
| 3.6÷0.36= | 2.8-0.9= |
| 0.36÷9= | 9.6÷4.8= |
| 5.5×0.2= | 2.13+1.7= |
10.列竖式计算,带星号的要验算
| 259+148= | 410-207= |
| 404-186= | 755+165= |
| 720-590= | 640+181= |
| ☆857+476= | ☆304-195= |
9.口算
| 36+41= | 50+390= |
| 800+120= | 420-270= |
| 720-50= | 400+300= |
| 87-34= | 300+50= |
| 60+150= | 510-280= |
| 690-600= | 23+48= |
| 0+212= | 97-79= |
| 127-0= | 74-27+35= |
| 283+316≈ | 159+97≈ |
7.直接写得数.
| $\frac{3}{4}$×16= | 12÷$\frac{3}{5}$= |
| 0.3×$\frac{5}{6}$= | $\frac{3}{5}$÷$\frac{9}{10}$= |
| 1÷$\frac{7}{8}$= | 25÷$\frac{5}{7}$= |
| $\frac{1}{2}$÷$\frac{1}{2}$×$\frac{1}{3}$= | 0×$\frac{7}{12}$= |
| $\frac{4}{25}$÷$\frac{3}{5}$= | $\frac{3}{7}$×2.1= |
5.两个分数的积一定是( )
0 136289 136297 136303 136307 136313 136315 136319 136325 136327 136333 136339 136343 136345 136349 136355 136357 136363 136367 136369 136373 136375 136379 136381 136383 136384 136385 136387 136388 136389 136391 136393 136397 136399 136403 136405 136409 136415 136417 136423 136427 136429 136433 136439 136445 136447 136453 136457 136459 136465 136469 136475 136483 199269
| A. | 真分数 | B. | 假分数 | C. | 不能确定 |