Addition and Subtraction of Decimal Fractions: Identify whether the exercise is written correctly

Examples with solutions for Addition and Subtraction of Decimal Fractions: Identify whether the exercise is written correctly

Exercise #1

Determine whether the exercise is correctly written or not.

True or false:

The positions of the decimal points correspond.

21.52+3.4

Video Solution

Step-by-Step Solution

First let's fill in the zeros in the empty spaces as follows:

21.52+03.40 21.52\\+03.40\\ Note that the decimal points are written one below the other.

Therefore, the positions of the decimal points correspond and thus the exercise is written in the correct form.

Answer

True

Exercise #2

Determine whether the exercise is correctly written or not.

3.05+213.22

Video Solution

Step-by-Step Solution

Note that the decimal points are not written one below the other. They do not correspond.

Therefore, the exercise is not written correctly.

Answer

Not true

Exercise #3

Determine whether the exercise is correctly written or not.

3.05+53.2

Video Solution

Step-by-Step Solution

Note that the decimal points are not written one below the other. They do not correspond.

Therefore, the exercise is not written correctly.

Answer

Not true

Exercise #4

Determine whether the exercise is written correctly:

Is the position of the decimal point correct in each number?

6.31+216.222

Video Solution

Step-by-Step Solution

First let's fill the zeros in the empty space as follows:

006.310+216.222  006.310\\+216.222\\\

Here We should note that the decimal points are written one below the other.

Therefore, the exercise is written in the appropriate form.

Answer

Yes

Exercise #5

Determine whether the exercise is correctly written or not.

The position of the decimal point corresponds.

312.54+1203.22

Video Solution

Answer

Not true

Exercise #6

Determine whether the exercise is correctly written or not.
The position of the decimal point corresponds.

38.15-122.3

Video Solution

Answer

True

Exercise #7

Determine whether the exercise is correctly written or not.

The position of the decimal point corresponds.

88.100-88.101

Video Solution

Answer

True

Exercise #8

Determine whether the exercise is correctly written or not.

The position of the decimal point corresponds.

99.38-99.38

Video Solution

Answer

True

Exercise #9

Determine whether the exercise is correctly written or not.

The position of the decimal point corresponds.

38.15-122.3

Video Solution

Answer

Not true

Exercise #10

is 3.22.10 3.2-2.10 the same as:

The position of the decimal point corresponds.

2.10-3.2

Video Solution

Answer

No.