1. 0.3+0.01+0.004=0.314
2. 5+0.7+0.09=5.79
3. 6+0.9+0.007=6.907
4. 28+0.05+0.006=28.056
5. 32+0.03+0.001=32.031
6. 90+0.5+0.07+0.0003=90.5703
