Title: 2) Formula: 120×3/5=72.

Title: 3) Formula:120× (1+3/5) =192.

Title: 4) Formula: 120÷( 1-3/5)=300.

Title: 5) Formula: 1203/5-120=80.

Title: 6) Formula:120 ÷ (1-3/5)-120 =180.

2、 1-( 1/ 15+ 1/ 10)×3= 1/2

3、 1 14÷( 1/4+5/ 18)=2 16

4、 300-300×[( 1- 1/4)×2/5+ 1/4]= 135

5、 40×( 1-2× 1/8)=30

6. Beverage weight: (800-700) ÷ [(1-1/3)-(1-kloc-0//2)] = 600.

Bottle weight: 700-600× 1/2=400.

7. A car includes a car body and four wheels, and a car body can make 120÷20=6 wheels, that is, a car can make 6+4= 10 wheels.

According to the topic, this bucket of plasticine can be used as a whole car.

120/ 10 = 12 vehicles.