4.7dm²=m² |
3.56kg=g |
8t50kg=t |
402m=km |
0.7+0.9= |
8.24+3.76= |
4.1-3.8= |
14.6-0.34= |
①856-315÷9+102
②3.27+6.4+2.73+4.6
③3200÷25÷4
④32×125×25
⑤1289-(89+1080-50)
⑥96×45-34×96-96
⑦4.8-3.62-0.38+0.2