11.直接写出得数
$\frac{2}{3}$÷8= | 16÷20%= | 20×25%= | $\frac{2}{3}$+$\frac{1}{4}$= | 0.53= |
$\frac{5}{16}$×$\frac{8}{15}$= | 50%-$\frac{2}{5}$= | 200×75%= | $\frac{5}{6}$÷$\frac{10}{11}$= | 1÷$\frac{1}{7}$×$\frac{1}{7}$= |
10.一个长4厘米,宽3厘米的长方形,若以长为轴旋转一周,得到的几何形体的体积是多少?正确的结果是( )立方厘米.
A. | 113.04 | B. | 150.72 | C. | 12 | D. | 100.48 |
9.甲数是乙数的2倍,那么甲数比乙数多( )
0 153434 153442 153448 153452 153458 153460 153464 153470 153472 153478 153484 153488 153490 153494 153500 153502 153508 153512 153514 153518 153520 153524 153526 153528 153529 153530 153532 153533 153534 153536 153538 153542 153544 153548 153550 153554 153560 153562 153568 153572 153574 153578 153584 153590 153592 153598 153602 153604 153610 153614 153620 153628 199269
A. | 20% | B. | 100% | C. | 50% | D. | 200% |