脱式计算
| 75×24+836÷4 | 2.1×0.5÷4.2 | ( | ( |
| 口算. 57÷3= | 360÷40= | 320÷80= | 640÷80= |
| 56÷4= | 440÷4= | 560÷70= | 92÷4= |
| 88÷8= | 480÷60= | 720÷9= | 540÷2= |
| 78÷6= | 390÷3= | 240÷40= | 87÷3= |
| 91÷7= | 540÷90= | 280÷7= | 920÷4= |
| 75×24+836÷4 | 2.1×0.5÷4.2 | ( | ( |
| 口算. 57÷3= | 360÷40= | 320÷80= | 640÷80= |
| 56÷4= | 440÷4= | 560÷70= | 92÷4= |
| 88÷8= | 480÷60= | 720÷9= | 540÷2= |
| 78÷6= | 390÷3= | 240÷40= | 87÷3= |
| 91÷7= | 540÷90= | 280÷7= | 920÷4= |