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Number and Algebra, NAP-E2-18 SA v1

Nathan bought kicking tee for $4.45 using coins in his pocket.

After paying, he counted $2.85 left in coins.

How much money in coins did Nathan have to start with?

$   
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`$7.30`

Show Worked Solution

`text(One strategy:)`

`$4.45 + $2.85` `=6.45 + 0.85 `  
  `=6.45 + 0.55 + 0.30`  
  `=$7.30`  

Number and Algebra, NAP-I2-01v1

Kranskie delivers brochures by hand and is paid 10 cents for every brochure he delivers.

Kranskie delivers 79 brochures in his first hour of work.

How much money will he be paid for this?

`79¢` `$7.90` `$79` `$790`
 
 
 
 
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`$7.90`

Show Worked Solution

`79 xx 10\ text(cents)`

`= 790\ text(cents)`

`= $7.90`

Number and Algebra, NAP-K2-11

Jarryd buys 3 water bottles for $1.50 each.

He pays for these water bottles with a $10 note.

How much change should Jarryd receive?

`$1.50` `$4.50` `$5.00` `$5.50`
 
 
 
 
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`$5.50`

Show Worked Solution
`text(Change)` `= $10 – (3 xx $1.50)`
  `= $10 – $4.50`
  `= $5.50`

Statistics, NAP-F1-35 SA

Brett made a graph showing all the coins in his money box.

How much money does Brett have in coins?

$  
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`$8.30`

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`text(Total of Brett’s money)`

`= 2 xx $1 + 8 xx 50¢ + 6 xx 20¢ + 4 xx 10¢ + 14 xx 5¢`

`= $2 + $4 + $1.20 + 40¢ + 70¢`

`= $8.30`

Number and Algebra, NAP-B1-31 SA

5 boys win $3.

They share the money equally.

How much does each boy get?

  cents
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`60¢`

Show Worked Solution
`$3 ÷ 5` `= 300¢ ÷ 5`
  `= 60¢`

 
`=>\ text(Each boy gets)\ 60¢`

Number and Algebra, NAP-C1-10

Sandy has the exact coins below in her pocket.

She buys fruit for lunch that costs $1.75.

How much money does Sandy have left?

`$0.08` `$1.00` `$1.10` `$1.20`
 
 
 
 
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`$1.20`

Show Worked Solution

`$1 xx 1 = $1`

`50¢ xx 3 = $1.50`

`20¢ xx 1 = 20¢`

`10¢ xx 2 = 20¢`

`5¢ xx 1 = 5¢`

 

`text(Total worth of coins)`

`= $1 + $1.50 + 20¢ + 20¢ + 5¢`

`= $2.95`

`:.\ text(Money left)` `= $2.95 – $1.75`
  `= $1.20`

Number and Algebra, NAP-D1-35 SA

Amanda has $2.10 in coins.

She only has 20¢, 10¢, and 5¢ coins and has an equal amount of each.

How many 5¢ coins does she have?
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`text(She has six 5¢ coins.)`

Show Worked Solution

`text(Total if she has 1 of each coin,)`

`20 + 10 + 5 = 35¢`

`text(Total if she has 2 of each coin,)`

`2 xx 35¢ = 70¢`

`vdots`

`text(Total if she has 6 of each coin,)`

`6 xx 35¢ = $2.10`

`:.\ text(She has six 5¢ coins.)`

Number and Algebra, NAP-E1-34

5 of plastic cups cost 30 cents.

How many cents does one cup cost?

 
   cents

What is the greatest number of cups that can be bought with exactly $6?

 
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`6\ text(cents), 100\ text(cups)`

Show Worked Solution
`text(C)text(ost of 1 cup)` `= 30 ÷ 5`
  `= 6\ ¢`

 

`=>\ text(Greatest number of cups)`

`= $6.00 ÷ 6\ ¢`

`= 600\ ¢ ÷ 6\ ¢`

`= 100\ text(cups)`

Number and Algebra, NAP-E1-24

Siri has this much money.

She buys a drink for $1.25.

How much money does Siri have left?

`text(75 cents)` `text(85 cents)` `text(90 cents)` `text(95 cents)`
 
 
 
 
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`text(85 cents)`

Show Worked Solution

`text(Money Siri has at the start)`

`=$1+50¢+20¢+20¢+10¢+10¢`

`=$2.10`

`text(Money left after buying a drink)`

`=$2.10 – $1.25`

`=85\ text(cents)`

Number and Algebra, NAP-F1-33 SA

Clancy bought some pens using a $20 note.

Each pen cost 35 cents.

Clancy got $16.15 change.

How many pens did Clancy buy?
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`11`

Show Worked Solution

`text(C) text(ost of pens)`

`= $20 – $16.15`

`= $3.85`

STRATEGY: This division is made easy by first working out that 10 pens cost $3.50.

 
`text(Number of pens bought)`

`= 3.85 ÷ 35\ text(cents)`

`= 11`

Number and Algebra, NAP-G1-25 SA

Damon had $1.40 in 5-cent coins in his piggy bank.

How many 5-cent coins does Damon have?
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`28`

Show Worked Solution

`text(One strategy:)`

`$1.40 = 14 xx 10¢`

`2 xx 5¢\ text(coins)\ = 10¢`

`:.\ text(Number of 5¢ coins)` `= 14 xx 2`
  `= 28`

Number and Algebra, NAP-H1-22

Joel has only these coins.

Joel buys a bottle of soda for $2.25 and a lollipop for 35 cents.

How much money does Joel have left?

`text(65 cents)` `text(80 cents)` `text(90 cents)` `$2.70` `$3.25`
 
 
 
 
 
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`text(65 cents)`

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`text(Total money before spending)`

`=50¢ + $2 +20¢ + 10¢+ 20¢ + 5¢ + 20¢`

`= $3.25`

`text(C)text(ost of soda and lollipop)`

`= $2.25 + 35¢`

`=$2.60`

`:.\ text(Money left)` `=$3.25 – $2.60`
  `=65¢`

Number and Algebra, NAP-H1-35 SA

Soda cans are sold in three different ways at the supermarket.
 


 

What is the cheapest price that someone can buy 13 cans for?

 
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`$17.50`

Show Worked Solution

`text(Two six packs and a single can:)`

`text(C)text(ost)` `=(2 xx 8) + 1.50`
  `=$17.50`

 

`text(One ten pack and 3 single cans:)`

`text(C)text(ost)` `=(1 xx 14) + (3 xx 1.50)`
  `=14 + 4.50`
  `=$18.50`

 

`:.\ text(The cheapest price is $17.50).`

Number and Algebra, NAP-H2-19

Sharon bought 6 chocolate bars that cost $1.20 each.

She gave the shopkeeper a $10 note.

How much change should Sharon expect?

`$2.80` `$4` `$7.20` `$8.80`
 
 
 
 
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`$2.80`

Show Worked Solution

`text(C) text(ost of 6 chocolate bars)`

`6 xx $1.20 = $7.20`

 

`:.\ text(Sharon’s change)` `=10.00 – 7.20`
  `=$2.80`