Question

24()+()*16=18 ()-0.72*()=56 6.2*()-()=4.16 ()*13.2+1.8*()=66

Answer 1

24*()+()*16=18 -------18/（24+16）=0.45

()-0.72*()=56-------56/（1-0.72）=200

6.2*()-()=4.16 -------4.16/（6.2-1）=0.8

()*13.2+1.8*()=66.6-------66.6/（13.2-1.8）=4.44