16.口算.
| $\frac{1}{3}$×0= | $\frac{1}{4}$+$\frac{2}{5}$= | $\frac{5}{6}$×12= | $\frac{7}{12}$×$\frac{3}{14}$= | $\frac{5}{6}$-$\frac{1}{2}$= |
| 2-$\frac{2}{3}$= | 1.8×$\frac{8}{9}$= | 0×$\frac{1}{8}$+$\frac{7}{8}$= | $\frac{8}{7}$×$\frac{7}{8}$×$\frac{14}{15}$= | $\frac{3}{4}$×$\frac{2}{3}$-$\frac{1}{4}$= |
15.小丽比小青高 $\frac{1}{8}$,那么小丽的身高是小青的( )
| A. | $\frac{9}{8}$ | B. | $\frac{7}{8}$ | C. | $\frac{8}{8}$ | D. | $\frac{1}{8}$ |
14.小明在小东家的西偏南30°方向,那么小东在小明家的( )方向.
| A. | 东偏南30° | B. | 南偏西60° | C. | 北偏东30° | D. | 东偏北30° |
10.下面的年份中( )年是闰年.
| A. | 1900 | B. | 1986 | C. | 2004 | D. | 2006 |
9.直接写出得数.
0 128386 128394 128400 128404 128410 128412 128416 128422 128424 128430 128436 128440 128442 128446 128452 128454 128460 128464 128466 128470 128472 128476 128478 128480 128481 128482 128484 128485 128486 128488 128490 128494 128496 128500 128502 128506 128512 128514 128520 128524 128526 128530 128536 128542 128544 128550 128554 128556 128562 128566 128572 128580 199269
| 2.6+1.3= | 12.4÷4= | 7.5÷43= | 18.6÷0.6= | 7.2÷0.9= |
| 1.5×6= | 15÷0.5= | 5÷2= | 1.2÷0.03= | 1.8×0.2= |