Solving exercises on pages 111, 112 of Math 3 Workbook Volume 2, Cánh Diều book

Solving Math for Grade 3 on pages 111, 112 of Cánh Diều Workbook Volume 2

Solving exercises on pages 111, 112 of Math 3 Workbook Volume 2, Cánh Diều book:

Reviewing some statistical and probability factors

1. Solve Exercise 1 Page 111 Math Textbook Grade 3

Problem: A store counts the number of various types of soft drinks sold in a day (counted per cup):

Observing the recorded table and answer the questions:
- How many cups of sugarcane juice did the store sell?
- Which type of drink did the store sell 11 cups of?

Solution Guide: Read the data in the table and then answer the questions of the problem.

Answer:
- The store sold 19 cups of sugarcane juice.
- The store sold 11 cups of orange juice.

2. Solve Exercise 2 Page 111 Math Textbook Grade 3

Problem: Observe the picture chart below:

a) Read the chart above and answer the following questions:
- How many white paint cans did the store sell?
- Which color paint cans did the store sell 9 cans of?
- In which colors did the store sell an equal number of paint cans?
- How many paint cans did the store sell in total?

Solution Guide: Based on the chart above, calculate the number of paint cans for each color then answer the questions of the problem.
- Compare the number of paint cans for each color to find colors with the same number of paint cans.

Answer:
The store sold 18 cans of white paint.
The store sold 12 cans of blue paint.
The store sold 12 cans of yellow paint.
The store sold 9 cans of red paint.
So:
- The store sold 18 cans of white paint.
- The store sold 9 cans of red paint.
- The store sold the same number of cans of blue paint as yellow paint.
- The store sold a total of 18 + 12 + 12 + 9 = 51 cans.

3. Solve Exercise 3 Page 112 Math Workbook Grade 3

Problem: Here is a statistical table of the number of people visiting a dental clinic for dental check-ups on various days of the week:

Read the table above and answer the following questions:
a) How many people visited the dentist on Monday?
b) How many more people visited the dentist on Sunday than on Monday?
c) On which day were only 2 people visiting the dentist?
d) How many people visited the dentist throughout the week?

Solution Guide: Read the data in the table and then answer the questions of the problem.

Answers:
a) There are 7 people visiting the dentist on Monday.
b) The number of people visiting the dentist on Sunday more than on Monday is:
14 - 7 = 7 (people)
c) The day with only 2 people visiting the dentist is Thursday.
d) The number of people visiting the dentist in the whole week is: 7 + 5 + 3 + 2 + 6 + 8 + 14 = 45 (people).

4. Solve Exercise 4 Page 112 Math Workbook Grade 3

Problem: Mix the following cards together and randomly draw one card. According to you, what are the possibilities of the card drawn?

Solution Guide: Observe the picture, describe the possibilities that can occur when drawing a card randomly.

Answers:
Observing the picture, we see that there are 2 types of figures: Cards with rabbit images and cards with elephant images.
So when mixing the cards together and randomly drawing one card, the possible occurrences are:
You can draw a card with a rabbit image.
You can draw a card with an elephant image.

Parents and students can refer to the solutions to exercises on pages 111 and 112 of Math Workbook Grade 3, Cánh Diều textbook. If students do not understand, parents can guide and explain to them with the content they are learning.