1. Add 3.45 to the product of 1.2 and 5.7.
2. Increase 76.4 by the product of 47.2 and 6.5.\
3. Multiply 25 by the difference of 34.78 and 12.99.
4. Take away 68.9 from the product of 58.2 and 5.7.
5. From 100.7, subtract the product of 4.8 and 9.6.
6. Multiply the difference of 2.3 and 1.9 from the sum of 1.5 and 3.6.
7. Decrease 23.9 from the product of 82.3 and 0.4.