42 ÷ 3= 14 9 1 ÷ 14=6.5

4.2 ÷ 3= 1.4 9. 1 ÷ 14=0.65

2. Four new fairy tales, priced at 26.8 yuan. What is the average price of each book?

26.4÷4=6.6 (Yuan)

The average price of each book is 6.6 yuan.

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And ... please.

answer

Class 3.5 (1) costs 24.2 yuan, and students get 16.4 yuan for selling waste products.

Xiaoling: This money can buy seven science and technology books for teenagers for the small bookshelf.

Xiao Qiang: You can also buy 14 skipping rope.

Q: How much is a copy of Youth Science and Technology? How much is a skipping rope?

What other questions can you ask?

24.2+ 16.4=40.6 (yuan)

40.6÷7=5.8 (yuan) 40.6÷ 14=2.9 (yuan)

Question: How many groups can I buy if I buy a copy of Youth Science and Technology and a skipping rope?

4. Dad takes Xiao Yong to climb the mountain at the weekend. It is 7.2 kilometers from this mountain to the top. It took them three hours to go up the mountain and two hours to go down. What is the speed of going up and down the mountain?

What other questions can you ask?

Up the mountain: 7.2 ÷ 3 = 2.4 km/h.

Downhill: 7.2 ÷ 2 = 3.6 km/h.

Question: What is the average speed of going up and down the mountain?