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Solve Grade 3 Mathematics Page 78, 79 from Bright Horizon Innovation Series Book 2
Solving exercises on pages 78, 79 of Mathematics 3 Grade 2 Textbook, Bright Horizon Innovation Series:
Reviewing numbers within the range of 100,000
1. Solve Exercise 1 Page 78 Mathematics Grade 3 Textbook
a) Read the numbers: 68,754; 90,157; 16,081; 2,023; 495.
b) Write the numbers.
Seventy-eight thousand six hundred thirty-eight.
Ninety-five.
Six thousand two hundred seventy.
One hundred thousand.
c) Write the numbers 741, 2,084, 54,692 as sums (according to the model).
Solution Guide:
a) Read the numbers: Read the numbers with five digits from right to left.
b) Write the numbers: Write the digits from ten thousand, thousand, hundred, ten, unit places.
Answer:
a) The given numbers are read as follows:
68,754: Sixty-eight thousand seven hundred fifty-four.
90,157: Ninety thousand one hundred fifty-seven.
16,081: Sixteen thousand eighty-one.
2,023: Two thousand twenty-three.
495: Four hundred ninety-five.
b) The numbers are written as follows:
Seventy-eight thousand six hundred thirty-eight: 70,638.
Ninety-five: 905.
Six thousand two hundred seventy: 6,270.
One hundred thousand: 100,000.
c) The numbers 741, 2,084, 54,692 are written as sums:
741 = 700 + 40 + 1
2,084 = 2,000 + 80 + 4
54,692 = 50,000 + 4,000 + 600 + 90 + 2
2. Solve Exercise 2 Page 78 Mathematics Grade 3 Textbook
Problem: Number ?.
Solution: Count an additional 10,000, 5,000, and fill in the missing numbers.
Đáp án:
3. Solve Exercise 3 Page 78 Mathematics Grade 3 Textbook
Problem: Which statement is correct, and which one is incorrect?
a) The number 91,171 is read as ninety-one thousand one hundred seventy-one.
b) The number eight thousand five hundred four is written as: 80,504.
c) A number consisting of 3 tens of thousands and 3 tens is written as: 3,030.
d) 2,050 = 2,000 + 50
Solution: Based on how numbers are read, written, and analyzed as sums to determine the correct and incorrect statements.
Answer:
a) Correct.
b) Incorrect. The number eight thousand five hundred four is written as: 8,054.
c) Incorrect. A number consisting of 3 tens of thousands and 3 tens is written as: 30,030.
d) Correct.
Answer:
a) Correct.
b) Incorrect. The number eight thousand five hundred four is written as: 8,054.
c) Incorrect. A number consisting of 3 tens of thousands and 3 tens is written as: 30,030.
d) Correct.
4. Solve Exercise 4 Page 78 Mathematics Grade 3 Textbook
Problem: Find the number that matches each sum below:
Solution: Calculate the sums in the left column and match them with the appropriate results in the right column.
Answer:
- See more: Solving exercises on pages 80 and 81 of Mathematics Grade 3 Volume 2 textbook, Bright Horizon Innovation series
5. Solve Exercise 5 Page 79 Mathematics Grade 3 Textbook
Problem: Choose the correct answer.
6. Solve Exercise 6 Page 79 Mathematics Grade 3 Textbook
Problem: Arrange the following numbers in ascending order: 54,726; 9,895; 56,034; 54,717.
Solution Guide:
Numbers with fewer digits are smaller.
For numbers with the same number of digits: compare each pair of digits in the same place value from left to right.
Answer:
The detailed solutions for exercises on pages 78 and 79 of Mathematics Grade 3 Volume 2 textbook, Bright Horizon Innovation series, have been provided. Pay attention to complete the exercises easily. To enhance your understanding, remember to review both theory and related practice exercises.
