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Solve Math exercises on pages 100, 101, 102, 103 of Workbook Volume 1, Connecting Knowledge with Life
Solve exercises on pages 100, 101, 102, 103 of Math Workbook 3 Volume 1, the book Connecting Knowledge with Life:
Dividing three-digit numbers by one-digit numbers
Activity 1
Solve Problem 1 on Page 100 Math Grade 3 Textbook
Problem: Calculate.
Solution Guide: Perform division operations from left to right.
Answer:
Solve Problem 2 on Page 100 Math Grade 3 Textbook
Problem: A store has 354 apples. They have packed these apples into boxes, with each box containing 6 apples. How many boxes have they packed in total?
Solution Guide: Number of apple boxes packed = Total number of apples in the store : Number of apples per box.
Answer:
The store packed the number of apple boxes as follows:
354 : 6 = 59 (boxes)
Answer: 59 boxes.
Solve Problem 3 on Page 100 Math Grade 3 Textbook
Problem: Number?
Solution Guide: To decrease a number by how many times, we divide the number by the times.
Answer:
264 : 8 = 33
312 : 6 = 52
552 : 4 = 138
We fill in as follows:
Activity 2
Solve Problem 1 on Page 101 Math Grade 3 Textbook
Problem: Calculate.
Solution Guide: Perform division operations from left to right.
Answer:
Solve Problem 2 on Page 102 Math Grade 3 Textbook
Problem: A bakery baked 460 cakes. They want to arrange all of these cakes into boxes, with each box containing 4 cakes. How many boxes can the bakery arrange?
Solution Guide: Number of cake boxes arranged = 460 cakes : number of cakes per box.
Answer:
The bakery can arrange the number of cake boxes as follows:
460 : 4 = 115 (cake boxes)
Answer: 115 cake boxes.
Solve Problem 3 on Page 102 Math Grade 3 Textbook
Problem: D, S?
Solution Guide: Perform division operations from left to right.
Answer:
a) True
b) False
The correct calculation is:
c) Incorrect
The correct calculation is
- Further reading: Solving exercises on pages 104, 105, 106, 107, 108 of Math Grade 3 Workbook Volume 1, in the book Connecting Knowledge with Life
Practice Sessions
1. Solve Exercise 1 on Page 102 of Math Grade 3 Workbook
Task: Set up the calculation and then compute (following the example).
Solution Guide: Perform division operations sequentially from left to right.
Answer:
2. Solve Exercise 2 on Page 103 of Math Grade 3 Workbook
Problem: Mental Calculation (following the example).
Solution Guide: Observe the given example then perform mental calculation of dividing a round number by another.
Answer:
400 : 4 = ?
Mental Calculation: 4 hundred : 4 = 1 hundred
400 : 4 = 100
600 : 3 = ?
Mental Calculation: 6 hundred : 3 = 2 hundred
600 : 3 = 200
800 : 2 = ?
Mental Calculation: 8 hundred : 2 = 4 hundred
800 : 2 = 400
3. Solve Exercise 3 on Page 103 of Math Grade 3 Workbook
Problem: Number?
Problem: Knowing that a robot weighs 600 g and the cubes are identical. So each cube weighs ...?... g.
Solution Guide: The weight of one cube = weight of robot : 4.
Answer:
Because the total weight balances the weight of 4 cubes equals the weight of the robot.
The weight of each cube is:
600 : 4 = 150 (g)
The answer is: 150 g.
4. Solving Exercise 4 on Page 103 of Math Textbook for Grade 3
Problem: Choose the correct answer.
Robot, Mai, and Viet each toss 3 chess pieces onto a board. Their respective scores are as follows:
The number of points Viet receives is:
A. 115 points B. 125 points C. 135 points
Solution: To find Viet's score, we need to determine how many points one chess piece on the board receives by dividing Mai's score by the number of Mai's chess pieces on the board.
Answer:
Viet's score is:
375 : 3 = 125 (points)
Final Answer: 125 points.
5. Solving Exercise 5 on Page 103 of Math Textbook for Grade 3
Problem: A farm has 15 camels with 1 hump each and the rest have 2 humps. It is known that they have a total of 225 humps. How many camels with 2 humps are there on the farm?
Solution Method:
Step 1: Number of humps on camels with 2 humps = Total number of humps - Number of camels with 1 hump.
Step 2: Number of camels with 2 humps = Number of humps on camels with 2 humps : 2
Answer:
The total number of humps on 2-humped camels is:
225 - 15 = 210 (humps)
The number of 2-humped camels on that farm is:
210 : 2 = 105 (camels)
Final Answer: 105 camels.
Solving exercises on pages 100, 101, 102, and 103 of Math Grade 3 Workbook Volume 1, the book 'Connecting Knowledge with Life' has provided detailed solutions to the division problems involving three-digit numbers divided by single-digit numbers. Students should pay attention to these solutions to solve the exercises correctly and reinforce their knowledge effectively.
