Examples with solutions for Decimal Fractions' Meaning: Decomposition of the decimal structure

Exercise #1

Write the number shown in the chart below:

Tenths41HundredthThousandthsOnesTensHundredsFractionsWhole Numbers15

Step-by-Step Solution

To solve this problem, we need to write the number shown by the digits in the chart corresponding to their specific place values:

  • The digits under 'Whole Numbers' are 11 in the 'Tens' place and 11 in the 'Ones' place.
  • The digits under 'Fractions' are 55 in the 'Tenths' place, 00 in the 'Hundredths' place (implicitly 0 as space is empty in chart), and 44 in the 'Thousandths' place.

Let's combine these:

The whole number part is 1111 (formed by 1×10+1×11 \times 10 + 1 \times 1).

The decimal fraction part is 0.5040.504 (formed by 5×0.1+0×0.01+4×0.0015 \times 0.1 + 0 \times 0.01 + 4 \times 0.001).

Thus, concatenating the whole number part and the decimal fraction part yields:

11.504

Answer

11.504

Exercise #2

Write the number shown in the chart below as a decimal:

100010010133

Step-by-Step Solution

To solve this problem, we follow these steps:

  • Identify the number and its position from the given chart.
  • In the 'ones' place, there is a '3'.
  • In the 'tenths' place, we also have a '3'.
  • Combine these digits respecting their place values to form a decimal.

Now, assembling this using place values:
- The '3' in the 'ones' place contributes a value of 33.
- The '3' in the 'tenths' place contributes a value of 0.30.3.

To create the complete number, add these place values:

3+0.3=3.33 + 0.3 = 3.3

Therefore, the solution to the problem, written as a decimal, is 3.33.3.

Answer

3.3

Exercise #3

Write the number shown in the chart below:

Tenths212HundredthThousandthsOnesTensHundredsFractionsWhole Numbers

Step-by-Step Solution

In this problem, we are tasked with reading a chart and forming a decimal number using the provided whole numbers and fraction parts.

The chart gives us information as follows:

  • Whole Numbers Section:
    • 'Hundreds': 0
    • 'Tens': 2
    • 'Ones': 0
  • Fraction Parts Section:
    • 'Tenths': 0
    • 'Hundredths': 2
    • 'Thousandths': 1

To construct the number, we start with the whole numbers:

The whole number part is 020 020 , which is interpreted as 20 20 since leading zeros in whole numbers do not count.

Next, we move to the fraction part:

The fraction part is 0.021 0.021 indicated by the positions 'Tenths', 'Hundredths', and 'Thousandths'.

Thus, combining whole and fractional parts, we form the number:

20.021 20.021

Therefore, the solution to the problem is 20.021 20.021 .

Answer

20.021

Exercise #4

Write the number shown in the chart below as a decimal:

100010010153

Video Solution

Step-by-Step Solution

To solve the problem, we must correctly interpret the chart and combine the digits into a complete decimal number based on their place values:

  • The number in the thousands place is 3, so it represents 3×1000=3000 3 \times 1000 = 3000 .
  • There are no numbers explicitly shown in the hundreds, tens, and ones places, which are assumed as zeros, hence their contribution is zero.
  • The digit after the decimal has a five in the hundredths place. Therefore, it represents 5×0.01=0.05 5 \times 0.01 = 0.05 .

To obtain the final number, we sum the contributions of each place value:

  • The overall contribution from the thousands place is 3000.
  • The decimal portion contributed by the hundredths place is 0.05.

Adding these up gives:

3000+0.05=3000.05 3000 + 0.05 = 3000.05

Thus, the number represented by the chart in decimal form is 3000.05 \textbf{3000.05} .

Answer

3000.05

Exercise #5

Write the number shown in the chart below as a decimal:

10001001011245

Video Solution

Step-by-Step Solution

To solve this problem, let's identify each digit's position in the given chart:

  • The columns of the chart correspond to the place values of the number, listed as thousands (1000), hundreds (100), tens (10), ones (1), tenths (0.1), and hundredths (0.01).

  • According to the chart, the digits are organized as follows:

    • In the hundreds column (100): the digit is 44.

    • In the tens column (10): the digit is 55.

    • In the ones column (1): the digit is 11.

    • In the tenths column (0.1): no digit or zero is in this column, which means 00.

    • In the hundredths column (0.01): the digit is 22.

  • Thus, arranging these digits in their respective place values, the number is 451.02451.02.

Therefore, the number represented as a decimal is 451.02451.02.

Answer

451.02

Exercise #6

Choose the correct decomposition of the number 300.6.

Video Solution

Step-by-Step Solution

The task is to decompose 300.6 into its constituent parts based on its decimal structure.

The number 300.6 consists of:

  • 300, which is the whole number (integer) part.
  • 0.6, which is the fractional (decimal) part.

To decompose 300.6 correctly, we must express it as the sum of these two components:

300.6=300+0.6 300.6 = 300 + 0.6

Now, let's evaluate the provided answer choices:

  • Choice 1: 300+0.6 300 + 0.6 - This correctly represents the decomposition.
  • Choice 2: 300+6 300 + 6 - This incorrectly assumes 0.6 is just 6.
  • Choice 3: 30+306 30 + 306 - This misrepresents both the integer and the decimal parts.
  • Choice 4: 30+0.6 30 + 0.6 - This only partially decomposes the integer incorrectly.

Therefore, the correct decomposition of 300.6 is choice 1: 300+0.6 300 + 0.6 .

Answer

300+0.6 300+0.6

Exercise #7

Choose the correct decomposition of the number 57.5.

Video Solution

Step-by-Step Solution

To solve this problem, we will decompose the number 57.5 by identifying the place value of each digit:

  • First, note that the '5' in 57.5 is in the tens place, representing 5×10=50 5 \times 10 = 50 .
  • The '7' is in the ones place, contributing 7×1=7 7 \times 1 = 7 .
  • The '.5' is in the tenths place, which corresponds to 0.5 0.5 .

By adding these components together, we have:

50+7+0.5 50 + 7 + 0.5 .

Thus, the decomposition of 57.5 is 50+7+0.5 50+7+0.5 .

Answer

50+7+0.5 50+7+0.5

Exercise #8

Identify which decimal place value chart represents the number 850.07?

Video Solution

Step-by-Step Solution

To solve the problem of identifying which chart corresponds to the number 850.07850.07, we need to break down the number into its place values:

  • The digit 88 is placed in the hundreds column, representing 800800.
  • The digit 55 is in the tens column, representing 5050.
  • The digit 00 is in the ones column, contributing 00 to the total.
  • To the right of the decimal point, the digit 00 is in the tenths place, contributing 0.00.0.
  • The digit 77 is in the hundredths position, contributing 0.070.07.

Thus, the number 850.07850.07 is represented correctly the following way in place value:

  • Hundreds: 88
  • Tens: 55
  • Units: 00
  • Decimal part: Hundredths 77

From the given choices of place value charts, the correct chart will display the following configuration:

  • The '100' column showing 88
  • The '10' column showing 55
  • The '1' column showing 00
  • The '0.01' column showing 77

Upon comparing all available options, the correct chart is Option 2.

Therefore, the correct decimal place value chart that represents the number 850.07850.07 is: Option 2.

Answer

1000100101578

Exercise #9

Identify which decimal place value chart represents the number 106.8?

Video Solution

Step-by-Step Solution

To correctly solve the problem, we will break down the number 106.8 according to its decimal place values.

  • The number 1 is in the hundreds place, representing 100.
  • The number 0 is in the tens place, representing 0.
  • The number 6 is in the ones place, representing 6.
  • The number 8 is in the tenths place, representing 0.8.

Given this breakdown, we look to match the digits on the place value chart

In the correct chart:

  • The chart will have a '1' under the '100' column, indicating one hundred.
  • The chart will have a '0' under the '10' column, indicating no tens.
  • The chart will have a '6' under the '1' column, indicating six ones.
  • The chart will have an '8' under the '0.1' column, showing eight-tenths.

Upon analyzing the available choices, the correct decimal place value chart that represents the number 106.8 is:

The choice with 1 under '100', 0 under '10', 6 under '1', and 8 under '0.1' correctly represents the number 106.8 as a decimal. According to the given choices, this is Choice 2.

Answer

1000100101681

Exercise #10

Identify which chart represents the number 30.102

Step-by-Step Solution

To solve this problem, we need to break down 30.102 30.102 into its corresponding decimal components and compare it to the available chart options.

The number 30.102 30.102 can be broken down as follows:

  • 3 3 tens
  • 0 0 units
  • 1 1 tenth
  • 0 0 hundredths
  • 2 2 thousandths

From this breakdown:

  • The tens place has the digit 3 3 .
  • The units place has the digit 0 0 .
  • The tenths place has the digit 1 1 .
  • The hundredths place has the digit 0 0 .
  • The thousandths place has the digit 2 2 .

Now, we will match these values against the choices provided in the Hebrew-labeled charts.

In choice 1, under

מספרים שלמים (whole numbers), the chart shows:
  • 33 in the tens column, matching our place for tens
  • 00 in the units column, matching our place for units

Under

שברים (fractions), the chart shows:
  • 11 in the tenths column, matching our decimal for tenths
  • 00 in the hundredths column, matching our decimal for hundredths
  • 22 in the thousandths column, matching our decimal for thousandths

This choice accurately represents the number 30.102 30.102 . Therefore, the correct choice is choice 1.

Therefore, the correct chart representing the number 30.10230.102 is the one under choice 1.

Answer

Tenths123HundredthsThousandthsUnitsTensHundredsFractionsWhole Numbers