1.下面各题,怎样简便就怎样算
| 101×$\frac{7}{25}$-$\frac{7}{25}$ | ($\frac{7}{9}$+$\frac{5}{27}$ )×54 | 60×[$\frac{4}{3}$÷($\frac{1}{2}$-$\frac{1}{3}$)] |
| $\frac{5}{6}$×$\frac{7}{8}$+$\frac{5}{6}$×$\frac{7}{8}$ | $\frac{3}{4}$÷$\frac{7}{5}$+$\frac{5}{7}$×$\frac{1}{4}$ | ($\frac{3}{5}$+$\frac{3}{10}$ )÷$\frac{7}{10}$. |
20.把$\frac{4}{5}$米的铁丝平均截成4段,每段占全长的( )
| A. | $\frac{1}{5}$ | B. | $\frac{1}{4}$ | C. | $\frac{1}{5}$米 |
19.把4克糖溶于16克水中,糖占糖水的( )
0 137562 137570 137576 137580 137586 137588 137592 137598 137600 137606 137612 137616 137618 137622 137628 137630 137636 137640 137642 137646 137648 137652 137654 137656 137657 137658 137660 137661 137662 137664 137666 137670 137672 137676 137678 137682 137688 137690 137696 137700 137702 137706 137712 137718 137720 137726 137730 137732 137738 137742 137748 137756 199269
| A. | $\frac{1}{4}$ | B. | $\frac{4}{16}$ | C. | $\frac{1}{5}$ |