Multiplication of Decimal Fractions: Finding the decimal point

Question 1

Look at the following exercise and determine the correct place of the decimal point:

$3.5\times2.4=840$

Question 2

Look at the following exercise and work out the correct place of the decimal point in the answer:

$0.3\times2.15=0645$

Question 3

Find the correct place of the decimal point:

$1.35\times2.47=33345$

Question 4

Given the following exercise, find the correct place of the decimal point:

$2.5\times0.13=0325$

Question 5

Given the following exercise, find the correct place of the decimal point:

$3.751\times0.5=18755$

Examples with solutions for Multiplication of Decimal Fractions: Finding the decimal point

Exercise #1

Look at the following exercise and determine the correct place of the decimal point:

$3.5\times2.4=840$

Video Solution

Step-by-Step Solution

In the number -3.5, there is one digit after the decimal point: 5.

In the number 2.4, there is one digit after the decimal point: 4.

In other words, we have two digits after the decimal point.

Therefore we will move the decimal point two places to the left to get our answer: 8.40.

Answer

$\text{8}.40$

Exercise #2

Look at the following exercise and work out the correct place of the decimal point in the answer:

$0.3\times2.15=0645$

Video Solution

Step-by-Step Solution

In the number -0.3, there is one digit after the decimal point: 3.

In the number 2.15, there are two digits after the decimal point: 15.

Therefore, we have three digits after the decimal point.

To find the answer, we will count three decimal places to the left, which gives us -0.645.

Answer

$0.645$

Exercise #3

Find the correct place of the decimal point:

$1.35\times2.47=33345$

Video Solution

Answer

$3.3345$

Exercise #4

Given the following exercise, find the correct place of the decimal point:

$2.5\times0.13=0325$

Video Solution

Answer

$\text{0}.325$

Exercise #5

Given the following exercise, find the correct place of the decimal point:

$3.751\times0.5=18755$

Video Solution

Answer

$1.8755$

Question 1

Given the following exercise, find the correct place of the decimal point:

$6.13\times2.05=125665$

Question 2

Given the following exercise, find the correct place of the decimal point:

$0.05\times0.8=004$

Question 3

Given the following exercise, find the correct place of the decimal point:

$0.2\times0.55=011$

Exercise #6

Given the following exercise, find the correct place of the decimal point:

$6.13\times2.05=125665$

Video Solution

Answer

$12.5665$

Exercise #7

Given the following exercise, find the correct place of the decimal point:

$0.05\times0.8=004$

Video Solution

Answer

$0.040$

Exercise #8

Given the following exercise, find the correct place of the decimal point:

$0.2\times0.55=011$

Video Solution

Answer

$0.110$