Decimal Word Problems: Addition and Subtraction 1

Years

Try VividMath Premium to unlock full access

Start Free Trial

Lets see your results!

Points

Score

Time

Retry Quiz

Answered
Review

Question 1 of 5

1. Question
A grass section for a garden is to be covered by a black fence on its perimeter. What would the total length of the fence be?
- (25.8) $m$ $\text(m)$
Hint

Help Video
Correct

Well Done!
Incorrect
Need Text
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Stream TypeLIVE
Loaded: 0%
Progress: 0%
0:00
Fullscreen
Video Acceleration:
On
Off

00:00
Mute
Playback Rate
1x
2x
1.5x
1.25x
1x
0.75x
0.5x
Subtitles
subtitles off
Captions
captions off
English
Chapters
Chapters

First, list down the given values in the problem.

Length: $7.6 m$ $7.6 \text(m)$

Required: $5.3 m$ $5.3 \text(m)$

To find the total length of the fence, solve for the perimeter of the grass section by adding the two lengths to the two widths.

Proceed with adding the values. Line up the decimal points (point over point).

If there are any blank values to the right of the decimal point, write $0$ $0$ .

Carry Overs $2$ $2$ $1$ $1$

$+$ $+$ $7$ $7$ $.$ $.$ $6$ $6$

$+$ $+$ $7$ $7$ $.$ $.$ $6$ $6$

$+$ $+$ $5$ $5$ $.$ $.$ $3$ $3$

$+$ $+$ $5$ $5$ $.$ $.$ $3$ $3$

$2$ $2$ $5$ $5$ $.$ $.$ $8$ $8$

Therefore, the total length of the black fence is $25.8 m$ $25.8 \text(m)$

$25.8 m$ $25.8 \text(m)$
Question 2 of 5

2. Question
Pedro has a piece of timber that is $6$ $6$ metres long. He needs to cut it down to a required length of $4.3$ $4.3$ m. How much does he need to cut off?
- (1.7) $m$ $\text(m)$
Hint

Help Video
Correct

Excellent!
Incorrect
Need Text
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Stream TypeLIVE
Loaded: 0%
Progress: 0%
0:00
Fullscreen
Video Acceleration:
On
Off

00:00
Mute
Playback Rate
1x
2x
1.5x
1.25x
1x
0.75x
0.5x
Subtitles
subtitles off
Captions
captions off
English
Chapters
Chapters

First, list down the given values in the problem.

Total length: $6 m$ $6 \text(m)$

Required length: $4.3 m$ $4.3 \text(m)$

To find the length that Pedro needs to cut off, simply subtract the required length from the total length.

Proceed with subtracting the values. Line up the decimal points (point over point).

If there are any blank values to the right of the decimal point, write $0$ $0$ .

$6$ $6$ $.$ $.$ $0$ $0$

$-$ $-$ $4$ $4$ $.$ $.$ $3$ $3$

Since $0$ $0$ is less than $3$ $3$ we will use borrowing to subtract

Simply, subtract $1$ $1$ from $6$ $6$ and add $10$ $10$ to $0$ $0$

$5$ $5$ $10$ $10$

$6$ $6$ $.$ $.$ $0$ $0$

$-$ $-$ $4$ $4$ $.$ $.$ $3$ $3$

$1$ $1$ $.$ $.$ $7$ $7$

Therefore, Pedro needs to cut off $1.7 m$ $1.7 \text(m)$ of timber

$1.7 m$ $1.7 \text(m)$
Question 3 of 5

3. Question
George is weighing his luggage to make sure that the weight of both bags does not exceed the airline’s limits. One bag weighs $28.5 kg$ $28.5 \text(kg)$ and the other bag weighs $19.25 kg$ $19.25 \text(kg)$ . What is the total weight of his luggage?
- (47.75) $kg$ $\text(kg)$
Hint

Help Video
Correct

Keep Going!
Incorrect
Need Text
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Stream TypeLIVE
Loaded: 0%
Progress: 0%
0:00
Fullscreen
Video Acceleration:
On
Off

00:00
Mute
Playback Rate
1x
2x
1.5x
1.25x
1x
0.75x
0.5x
Subtitles
subtitles off
Captions
captions off
English
Chapters
Chapters

First, list down the given values in the problem.

Weight of first bag: $28.5 kg$ $28.5 \text(kg)$

Weight of second bag: $19.25 kg$ $19.25 \text(kg)$

To find the total weight of George’s luggage, simply add the weight of the first and second bag.

Proceed with adding the values. Line up the decimal points (point over point).

If there are any blank values to the right of the decimal point, write $0$ $0$ .

Carry Overs $1$ $1$

$+$ $+$ $2$ $2$ $8$ $8$ $.$ $.$ $5$ $5$ $0$ $0$

$+$ $+$ $1$ $1$ $9$ $9$ $.$ $.$ $2$ $2$ $5$ $5$

$4$ $4$ $7$ $7$ $.$ $.$ $7$ $7$ $5$ $5$

Therefore, the total weight of George’s luggage is $47.75 kg$ $47.75 \text(kg)$

$47.75 kg$ $47.75 \text(kg)$
Question 4 of 5

4. Question
Four boxes are to be weighed. The first one weighs $1.4 kg$ $1.4 \text(kg)$ , the second one weighs $3 kg$ $3 \text(kg)$ , the third one weighs $3.85 kg$ $3.85 \text(kg)$ and the fourth one weighs $1.6 kg$ $1.6 \text(kg)$ . What is the total mass of the boxes?
- (9.85) $kg$ $\text(kg)$
Hint

Help Video
Correct

Great Work!
Incorrect
Need Text
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Stream TypeLIVE
Loaded: 0%
Progress: 0%
0:00
Fullscreen
Video Acceleration:
On
Off

00:00
Mute
Playback Rate
1x
2x
1.5x
1.25x
1x
0.75x
0.5x
Subtitles
subtitles off
Captions
captions off
English
Chapters
Chapters

First, list down the given values in the problem.

First box: $1.4 kg$ $1.4 \text(kg)$

Second box: $3 kg$ $3 \text(kg)$

Third box: $3.85 kg$ $3.85 \text(kg)$

Fourth box: $1.6 kg$ $1.6 \text(kg)$

To find the total mass, simply add the mass of the four boxes.

Proceed with adding the values. Line up the decimal points (point over point).

If there are any blank values to the right of the decimal point, write $0$ $0$ .

Carry Overs $1$ $1$

$+$ $+$ $1$ $1$ $.$ $.$ $4$ $4$ $0$ $0$

$+$ $+$ $3$ $3$ $.$ $.$ $0$ $0$ $0$ $0$

$+$ $+$ $3$ $3$ $.$ $.$ $8$ $8$ $5$ $5$

$+$ $+$ $1$ $1$ $.$ $.$ $6$ $6$ $0$ $0$

$9$ $9$ $.$ $.$ $8$ $8$ $5$ $5$

Therefore, the total mass of the boxes is $9.85 kg$ $9.85 \text(kg)$

$9.85 kg$ $9.85 \text(kg)$
Question 5 of 5

5. Question
Matthew’s temperature went from $36.2 ° C$ $36.2°C$ to $38 ° C$ $38°C$ . How much did his temperature rise?
- (1.8) $° C$ $°C$
Hint

Help Video
Correct

Excellent!
Incorrect
Need Text
Play
Current Time 0:00
/
Duration Time 0:00
Remaining Time -0:00
Stream TypeLIVE
Loaded: 0%
Progress: 0%
0:00
Fullscreen
Video Acceleration:
On
Off

00:00
Mute
Playback Rate
1x
2x
1.5x
1.25x
1x
0.75x
0.5x
Subtitles
subtitles off
Captions
captions off
English
Chapters
Chapters

First, list down the given values in the problem.

Starting temperature: $36.2 ° C$ $36.2°C$

End temperature: $38 ° C$ $38°C$

To find the increase in temperature, subtract the starting temperature from the end temperature.

Proceed with subtracting the values. Line up the decimal points (point over point).

If there are any blank values to the right of the decimal point, write $0$ $0$ .

$3$ $3$ $8$ $8$ $.$ $.$ $0$ $0$

$-$ $-$ $3$ $3$ $6$ $6$ $.$ $.$ $2$ $2$

Since $0$ $0$ is less than $2$ $2$ we will use borrowing to subtract

Simply, subtract $1$ $1$ from $8$ $8$ and add $10$ $10$ to $0$ $0$

$7$ $7$ $10$ $10$

$3$ $3$ $8$ $8$ $.$ $.$ $0$ $0$

$-$ $-$ $3$ $3$ $6$ $6$ $.$ $.$ $2$ $2$

$1$ $1$ $.$ $.$ $8$ $8$

Therefore, Matthew’s temperature increased by $1.8 ° C$ $1.8°C$ .

$1.8 ° C$ $1.8°C$

Decimal Word Problems: Addition and Subtraction 1

Try VividMath Premium to unlock full access

Quiz summary

Information

1. Question

Hint

Well Done!

2. Question

Hint

Excellent!

3. Question

Hint

Keep Going!

4. Question

Hint

Great Work!

5. Question

Hint

Excellent!

Quizzes

Carry Overs	$2$ $2$	$1$ $1$
$+$ $+$		$7$ $7$	$.$ $.$	$6$ $6$
$+$ $+$		$7$ $7$	$.$ $.$	$6$ $6$
$+$ $+$		$5$ $5$	$.$ $.$	$3$ $3$
$+$ $+$		$5$ $5$	$.$ $.$	$3$ $3$
	$2$ $2$	$5$ $5$	$.$ $.$	$8$ $8$

	$5$ $5$		$10$ $10$
	$6$ $6$	$.$ $.$	$0$ $0$
$-$ $-$	$4$ $4$	$.$ $.$	$3$ $3$
	$1$ $1$	$.$ $.$	$7$ $7$