Number, NAPX-K2-30 SA

Question

{{{question}}}

Worked Solution

{{{workedSolution}}}

Variant 0

DifficultyLevel

583

Question

Candice buys art supplies for her art studio.

She rounds each price to the nearest dollar to estimate the total cost of the supplies.



How much is Candice's estimate?

Worked Solution

Rounding each item to the nearest dollar:

paint = $7

pencil = $2

canvas = $13

chalk = $7

glue = $4
Candice's Estimate = 7 + 2 + 13 + 7 + 4
= $33.00

Question Type

Answer Box

Variables

Variable nameVariable value
question
Candice buys art supplies for her art studio. She rounds each price to the nearest dollar to estimate the total cost of the supplies.
sm_img https://teacher.smartermaths.com.au/wp-content/uploads/2019/01/NAPX-K2-30.svg 220 indent3 vpad
How much is Candice's estimate?
workedSolution
Rounding each item to the nearest dollar: paint = $7 pencil = $2 canvas = $13 chalk = $7 glue = $4
||| |-|-| |Candice's Estimate| = 7 + 2 + 13 + 7 + 4| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
33.00
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer033.00

$

Variant 1

DifficultyLevel

586

Question

John is buying electrical supplies for a job.

He rounds each price in the table below to the nearest dollar to estimate the total cost of his purchase.


Electrical Supplies

Item Cost
5-watt lightbulb $7.55
7-watt lighbulb $8.40
pliars $15.75
electrical tape $2.95
capacitor $4.80


How much is Johns's estimate?

Worked Solution

Rounding each item to the nearest dollar:

5-watt lightbulb = $8

7-watt lightbulb = $8

pliars = $16

electrical tape = $3

capacitor = $5
John's Estimate = 8 + 8 + 16 + 3 + 5
= $40

Question Type

Answer Box

Variables

Variable nameVariable value
question
John is buying electrical supplies for a job. He rounds each price in the table below to the nearest dollar to estimate the total cost of his purchase.
>>Electrical Supplies >>| Item | Cost | |:-:|-:| | 5-watt lightbulb | $7.55 | | 7-watt lighbulb | $8.40 | | pliars | $15.75 | | electrical tape | $2.95 | | capacitor| $4.80|

How much is Johns's estimate?
workedSolution
Rounding each item to the nearest dollar: 5-watt lightbulb = $8 7-watt lightbulb = $8 pliars = $16 electrical tape = $3 capacitor = $5
||| |-|-| |John's Estimate| = 8 + 8 + 16 + 3 + 5| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
40
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer040

$

Variant 2

DifficultyLevel

582

Question

Kate is buying materials for making a dress.

She rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.


Materials

Item Cost
buttons $3.35
zipper $6.65
material $23.45
sewing thread $2.60
scissors $4.95


How much is Kate's estimate?

Worked Solution

Rounding each item to the nearest dollar:

buttons = $3

zipper = $7

material = $23

sewing thread = $3

scissors = $5
Kate's Estimate = 3 + 7 + 23 + 3 + 5
= $41

Question Type

Answer Box

Variables

Variable nameVariable value
question
Kate is buying materials for making a dress. She rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.
>>Materials >>| Item | Cost | |:-:|-:| | buttons | $3.35 | | zipper | $6.65 | | material | $23.45 | | sewing thread| $2.60 | | scissors| $4.95|

How much is Kate's estimate?
workedSolution
Rounding each item to the nearest dollar: buttons = $3 zipper = $7 material = $23 sewing thread = $3 scissors = $5
||| |-|-| |Kate's Estimate| = 3 + 7 + 23 + 3 + 5| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
41
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer041

$

Variant 3

DifficultyLevel

579

Question

Byron is buying materials for repairing his hot air balloon.

He rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.


Materials

Item Cost
pliars $7.55
zipper $4.80
screws $11.35
thread $4.90
box cutter $2.15


How much is Byron's estimate?

Worked Solution

Rounding each item to the nearest dollar:

pliars = $8

zipper = $5

screws = $11

thread = $5

box cutter = $2
Byron's Estimate = 8 + 5 + 11 + 5 + 2
= $31

Question Type

Answer Box

Variables

Variable nameVariable value
question
Byron is buying materials for repairing his hot air balloon. He rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.
>>Materials >>| Item | Cost | |:-:|-:| | pliars | $7.55 | | zipper | $4.80 | | screws | $11.35 | | thread| $4.90 | | box cutter| $2.15|

How much is Byron's estimate?
workedSolution
Rounding each item to the nearest dollar: pliars = $8 zipper = $5 screws = $11 thread = $5 box cutter = $2
||| |-|-| |Byron's Estimate| = 8 + 5 + 11 + 5 + 2| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
31
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer031

$

Variant 4

DifficultyLevel

577

Question

Phil is buying materials for repairing a BMX bike.

He rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.


Materials

Item Cost
oil $4.65
chain $22.95
pliars $3.45
tyre $8.60
rag $1.85


How much is Phil's estimate?

Worked Solution

Rounding each item to the nearest dollar:

oil = $5

chain = $23

pliars = $3

tyre = $9

rag = $2
Phil's Estimate = 5 + 23 + 3 + 9 + 2
= $42

Question Type

Answer Box

Variables

Variable nameVariable value
question
Phil is buying materials for repairing a BMX bike. He rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.
>>Materials >>| Item | Cost | |:-:|-:| | oil | $4.65 | | chain | $22.95 | | pliars | $3.45 | | tyre| $8.60 | | rag | $1.85|

How much is Phil's estimate?
workedSolution
Rounding each item to the nearest dollar: oil = $5 chain = $23 pliars = $3 tyre = $9 rag = $2
||| |-|-| |Phil's Estimate| = 5 + 23 + 3 + 9 + 2| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
42
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer042

$

Variant 5

DifficultyLevel

573

Question

Shannon is buying materials for making a bookcase.

She rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.


Materials

Item Cost
hammer $5.65
glue $3.95
wood $11.55
nails $1.60
stain $3.85


How much is Shannon's estimate?

Worked Solution

Rounding each item to the nearest dollar:

hammer = $6

glue = $4

wood = $12

nails = $2

stain = $4
Shannon's Estimate = 6 + 4 + 12 + 2 + 4
= $28

Question Type

Answer Box

Variables

Variable nameVariable value
question
Shannon is buying materials for making a bookcase. She rounds each price in the table below to the nearest dollar to estimate the total cost of the materials.
>>**Materials** >>| Item | Cost | |:-:|-:| | hammer | $5.65 | | glue | $3.95 | | wood | $11.55 | | nails| $1.60 | | stain| $3.85|

How much is Shannon's estimate?
workedSolution
Rounding each item to the nearest dollar: hammer = $6 glue = $4 wood = $12 nails = $2 stain = $4
||| |-|-| |Shannon's Estimate| = 6 + 4 + 12 + 2 + 4| || = {{{prefix0}}}{{{correctAnswer0}}}|
correctAnswer0
28
prefix0
$
suffix0

Answers

Specify one or more 'ANSWER' block(s) as exampled below.
Note: correctAnswer is required, the rest are optional. ("correctAnswer" is what the student would need to type in to the box to get the answer correct.)

For example:
correctAnswer: 123.40

And optionally, specify the following, but only if you need something different to the defaults: 'width' defaults to 5 if not present, and valid values are 3 to 10; 'prefix' and 'suffix' default to nothing if not present.
prefix: $
suffix: mm$^2$
width: 5

correctAnswerNcorrectAnswerValueAnswer
correctAnswer028

$

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