Philosophy behind the math problem!

On the whiteboard.

Zhang Ye's wondrous math problem from his previous world had surfaced in this world!!

The problems were: Follow the rhythm and write out the multiplication formula (a set of onomatopoeic words):

1: Ding Ding Ding, Ding Ding Ding;

2: Ah, Ah, Ah, Ah;

3: Wu Wu Wu, Wu Wu Wu;

4: Miao Miao, Miao Miao, Miao Miao.

There were a total of four questions with few words. Zhang Ye finished writing them with just a few strokes before putting down the marker. He turned around and said, "I have finished setting the questions, everyone can give them a try. The students may try it as well, so just find a blank piece paper to write down your answers. Yes, let me emphasize it once more, this is a set of elementary math questions meant for primary school students. OK, you may begin now."