7.口算.
| 1.6×5= | 3.2÷0.5×2= | 1÷0.025= | 1.6×0.5×8= |
| 0.1÷0.01= | 4.3÷0.43= | 35+6.4= | 24.3÷3÷0.3= |
6.在下面的循环小数中,与其它两个不同的一个是( )
| A. | 0.14545… | B. | 3.777… | C. | 0.54747… |
5.在“5.46÷2.8=( )÷28”中,括号里应填上( )
| A. | 546 | B. | 5.46 | C. | 54.6 |
4.下列算式中,商比被除数大的算式是( )
| A. | 1.2÷1.5 | B. | 3.5÷0.7 | C. | 0.96÷5 |
3.下列各式中,( )的商是循环小数.
| A. | 2.7÷3.6 | B. | 3÷8 | C. | 0.25÷0.75 |
1.下列各式的商,( )小于1.
| A. | 5.04÷1.2 | B. | 32.93÷37 | C. | 0.462÷0.28 |
19.口算
0 128627 128635 128641 128645 128651 128653 128657 128663 128665 128671 128677 128681 128683 128687 128693 128695 128701 128705 128707 128711 128713 128717 128719 128721 128722 128723 128725 128726 128727 128729 128731 128735 128737 128741 128743 128747 128753 128755 128761 128765 128767 128771 128777 128783 128785 128791 128795 128797 128803 128807 128813 128821 199269
| 0.8×7= | 8×0.6= | 70×0.12= | 0.25×8= | 0.45×3= |
| 0.125×8= | 3×0.2×4= | 2.5×4= | 8×0.09= | 0.5×4= |