Solve exercise 1 on pages 150 and 151 of Math 5 textbook.

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Ngày cập nhật gần nhất: 15/4/2026

Solve exercise 1 on pages 150 and 151 of Math 5 textbook, part of the Decimal Review, focusing on Decimal Number reading; explaining the integer part, the decimal part, and the value according to the position of each digit.

Guidance for solving exercise 1 on pages 150 and 151 of Math 5 textbook

Problem:
Read decimal numbers; explain the integer part, the decimal part, and the value according to the position of each digit:
63.42; 99.99; 81.325; 7.081.

Solution Method:
* Reading decimal numbers: Read from highest to lowest place value: Read the integer part, then the decimal point, and finally the fractional part.
* Identifying parts of decimal numbers:
- Integer part: The part of the number before the decimal point
- Decimal part: The part of the number after the decimal point.

Answer:
+) Number 63.42 is read as: Sixty-three point forty-two.
- 63 is the integer part, and 42 is the decimal part.
- The digit 6 represents 6 tens, the digit 3 represents 3 units, the digit 4 represents 4 tenths, and the digit 2 represents 2 hundredths.
+) Number 99.99 is read as: Ninety-nine point ninety-nine.
- 99 (before the decimal point) is the integer part, and 99 (after the decimal point) is the decimal part.
- From left to right: 9 represents 9 tens, 9 represents 9 units, 9 represents 9 tenths, and 9 represents 9 hundredths.
+) Number 81.325 is read as: Eighty-one point three hundred twenty-five.
- 81 is the integer part, and 325 is the decimal part.
- From left to right: 8 represents 8 tens, 1 represents 1 unit, 3 represents 3 tenths, 2 represents 2 hundredths, and 5 represents 5 thousandths.
+) Number 7.081 is read as: Seven point zero eight one.
- 7 is the integer part, and 081 is the decimal part.
- From left to right: 7 represents 7 units, 0 represents 0 tenths, 8 represents 8 hundredths, and 1 represents 1 thousandth.

Here is the guidance for solving exercise 1 on pages 150 and 151 of Math 5 textbook, focusing on concentrated practice. Additionally, this section includes 4 other exercises: Solve exercise 2 on pages 150 and 151 of Math 5 textbook, Solve exercise 3 on pages 150 and 151 of Math 5 textbook, Solve exercise 4 on pages 150 and 151 of Math 5 textbook, and Solve exercise 5 on pages 150 and 151 of Math 5 textbook. Also, check out the guidance for Solving Math problems for grade 5 on pages 150 and 151 to excel in Math for grade 5.

Frequently Asked Questions

How do you read decimal numbers from a Math 5 textbook?

To read decimal numbers, first identify the integer part before the decimal point, followed by the decimal point itself, and then the fractional part after the decimal. For example, 63.42 is read as 'Sixty-three point forty-two.'

What are the parts of a decimal number according to the Math 5 guidance?

A decimal number consists of two main parts: the integer part, which is the portion before the decimal point, and the decimal part, which follows it. For instance, in 81.325, 81 is the integer part, and 325 is the decimal part.

How do the digits in a decimal number represent values?

In decimal numbers, each digit's position indicates its value. For instance, in 63.42, the digit 6 represents 6 tens, 3 represents 3 units, 4 represents 4 tenths, and 2 represents 2 hundredths, illustrating how position affects value.

What is the process to solve exercise 1 in the Math 5 textbook?

To solve exercise 1, read each decimal number by first stating the integer part, then mentioning the decimal point, followed by the decimal part. This structured approach helps clarify the reading and understanding of decimal values.

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