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Solving Grade 3 Mathematics exercises on pages 63 and 64 of the book Horizon of Creativity Volume 2
Solving exercises on pages 63 and 64 of Math 3 Workbook Volume 2, Bright Horizon
Multiplying a five-digit number by a single-digit number
Practice
1. Solve Exercise 1 on Page 63 of Grade 3 Mathematics Textbook
Problem: Set up the calculation then solve.
Solution Guide:
- Arrange the multiplication vertically so that the digits in the same row align vertically.
- Perform the multiplication from right to left.
Answer:
Practice
1. Solve Exercise 1 on Page 63 of Grade 3 Mathematics Textbook
Problem: Calculate mentally.
Solution Guide: Mentally calculate the result of multiplication with round numbers to tens, hundreds, thousands.
Answer:
30 x 3 = 90 50 x 4 = 200
3 000 x 3 = 9 000 500 x 4 = 2 000
- See more: Solving exercises on pages 65, 66, 67 of Mathematics 3 Textbook Volume 2, in the book Horizon of Creativity
2. Solve Exercise 2 on Page 64 of Grade 3 Mathematics Textbook
Problem: Find expressions with equal values.
Solution Guide: Calculate the values of the expressions and then find expressions with equal values.
Answer:
Expressions with equal values are: A and N; B and L; C and M; D and O.
3. Solve Exercise 3 on Page 64 of Grade 3 Mathematics Textbook
Problem: State the appropriate measurements.
Solution Guide: To find the perimeter of a square, multiply the length of one side by 4.
Answer:
4. Solve Exercise 4 on Page 64 of Grade 3 Mathematics Textbook
Problem: On the first day, 36,250 eggs were brought into the warehouse. On the next day, the number of eggs brought in was twice that of the first day. How many eggs were brought into the warehouse on the next day?
Solution Guide: Number of eggs brought in on the next day = Number of eggs brought in on the first day x 2.
Answer:
The number of eggs imported the next day is:
36,250 x 2 = 72,500 (eggs)
Answer: 72,500 eggs.
5. Solve Exercise 5 Page 64 Math Textbook Grade 3
Problem: Hà's house is 5,400 m away from school. Every day she goes to school, Hà goes from home to school and then back from school to home. Hà goes to school 5 days a week. How many kilometers does Hà have to travel in a week?
Solution Guide:
Step 1: Calculate the number of meters Hà travels in one day = distance from home to school x 2.
Step 2: Calculate the total number of meters Hà has traveled in one week of going to school = Number of meters Hà travels in one day x 5.
Convert the length units to kilometers and conclude.
Answer:
Every day going to school, Hà has to travel meters:
5,400 x 2 = 10,800 (m)
During one week going to school, Hà has to travel meters:
10,800 x 5 = 54,000 (m)
Converted: 54,000 m = 54 km.
Answer: 54 km.
Challenge
Solution Guide: Based on the calculation rules, we estimate and find the appropriate digits for the '?' in each box.
Answer:
With the solution to exercises on pages 63 and 64 of Math 3 Workbook Volume 2, the book Horizon of Creativity, have you mastered the method? Parents can also refer to guide their children to solve the exercises correctly and understand the lesson better.
