问题
计算题
计算下面各题，能简算的要简算。
|
答案
| （1）0.65×101 | |
| =0.65×（100+1） | |
| =0.65×100+0.65 | |
| =65+0.65 | |
| =65.65 | （2）76.43﹣5.33﹣4.67 |
| =76.43﹣（5.33+4.67） | |
| =76.43﹣10 | |
| =66.43 | （3）3.4÷[7.8﹣（3.9+2.2）] |
| =3.4÷[7.8﹣6.1] | |
| =3.4÷1.7 | |
| =2 |
（4）13.7÷12.5÷0.8
=13.7÷（12.5÷0.8）
=13.7÷10
=1.37
=（3.25+6.75）×8.4
=10×8.4
=84
=[2.8﹣1.2]÷40
=1.6÷40
=0.04