10. There are two numbers 365 and 24. Now subtract 19 from the first number and add 12 to the second number, which counts as one operation. How many operations ( ) will it take for the two numbers to be equal.
【Answer】11 times.
【Analysis】Key point: Difference Analysis
Xueersi corresponding lecture: Age problems involving catching up differences in the third-grade autumn class, 
Profit and loss problems in the third-grade summer class, are actually all difference analysis.
The original difference between the two numbers: $365-24=341$, each operation reduces the first number by 19 and increases the second number by 12, so the difference between the two numbers decreases by $19+12=31$. It requires $341 \div 31=11$ (times) of operations to make the two numbers equal.