(1) In the contest, Xiaoyun scored 60 points, and (1) Jony J scored Xiaoyun's 3 points and only got 2 points. How many ways did Xiao Jia do? Column:

Two people competed to do oral arithmetic problems, and Xiaoyun did 60.

(1) Xiao Jia scored 3 points and Xiao Yun scored only 2 points. How many ways did Xiao Jia do? Column:

60×2/3=40

(2) Xiaoyun achieved Jony J's 3 points and only got 2 points. How many ways did Jony J do? Column:

60÷2/3=90

(3) Xiao Jia scored 3 points less than Xiao Yun, only 2 points. How many ways did Xiao Jia do? Column:

60×( 1-2/3)=60× 1/3=20

(4) Xiao Yun scored 3 points less than Xiao Jia. 2. How many courses did Xiao Jia study? row

60÷( 1-2/3)=60÷ 1/3= 180

(5) Xiao Jia scored 3 points more than Xiao Yun. 2. How many courses did Xiao Jia take? Column:

60×( 1+2/3)=60×5/3= 100

(6) Xiao Yun scored 3 points more than Xiao Jia. 2. How many courses did Xiao Jia study? Column:

60÷( 1+2/3)=60÷5/3=36