脱式计算．8.9×5.2+9.31.4×[（7.5+38.4）÷0.9]9.4×8.4+5.81.3×2.2-0.20.9+8.3×8.330.1÷[（6.07+2.53）×0.7]．
问题描述：
脱式计算．
| 8.9×5.2+9.3 | 1.4×[（7.5+38.4）÷0.9] | 9.4×8.4+5.8 |
| 1.3×2.2-0.2 | 0.9+8.3×8.3 | 30.1÷[（6.07+2.53）×0.7]． |
答
（1）8.9×5.2+9.3
=46.28+9.3
=55.58
（2）1.4×[（7.5+38.4）÷0.9]
=1.4×[45.9÷0.9]
=1.4×51
=71.4
（3）9.4×8.4+5.8
=78.96+5.8
=84.76
（4）1.3×2.2-0.2
=2.86-0.2
=2.66
（5）0.9+8.3×8.3
=0.9+68.89
=69.79
（6）30.1÷[（6.07+2.53）×0.7]
=30.1÷[8.6×0.7]
=30.1÷6.02
=5