口算
| 0.1×100= | 7.2÷10= | 93÷100= | 0.25×1000= |
| 159+61= | 600÷20= | 78+222= | 405-60= |
| 17×11= | 0.4+7.5= | 9.3-2.7= | 1-0.09=- |
| 7600÷400= | 480÷120= | 695-75= | 1000÷8= |
| 0.1×100= | 7.2÷10= | 93÷100= | 0.25×1000= |
| 159+61= | 600÷20= | 78+222= | 405-60= |
| 17×11= | 0.4+7.5= | 9.3-2.7= | 1-0.09=- |
| 7600÷400= | 480÷120= | 695-75= | 1000÷8= |