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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`
 
 
 
 
Show Answers Only

`$5.50`

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

Filed Under: Financial Mathematics, Money, Money and Financial Mathematics Tagged With: Band 6, smc-2536-30-$ and cents calculations, smc-2536-40-Change, smc-3020-20-$ and cents calculations, smc-3086-30-$ and cents calculations, smc-3086-40-Change

Number and Algebra, NAP-F2-36 SA

Horace bought some pens for school with a $5 note.

Each of the pens cost 35 cents.

Horace received $1.15 change.

How many pens did he buy?

Show Answers Only

`11`

Show Worked Solution

`text(One strategy:)`

`text(Consider some different numbers of pens,)`

`text(10 pens cost $3.50 ⇒ change of $1.50)`

`:. 11\ text(pens cost $3.85 ⇒ change of $1.15)`

Filed Under: Financial Mathematics, Money and Financial Mathematics Tagged With: Band 9, smc-2536-30-$ and cents calculations, smc-2536-40-Change, smc-3086-30-$ and cents calculations, smc-3086-40-Change

Number and Algebra, NAP-C2-5

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?

`$0.80` `$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`

Filed Under: Financial Mathematics, Money and Financial Mathematics Tagged With: Band 4, smc-2536-10-Coins, smc-2536-40-Change, smc-3086-10-Coins, smc-3086-40-Change

Number and Algebra, NAP-E2-18 SA

Henry bought an ice cream cone for $2.85 using coins in his pocket.

After paying, he counted $1.45 left in coins.

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

$   
Show Answers Only

`$4.30`

Show Worked Solution

`$2.85 + $1.45 = $4.30`

Filed Under: Financial Mathematics, Money and Financial Mathematics Tagged With: Band 5, smc-2536-30-$ and cents calculations, smc-2536-40-Change, smc-3086-30-$ and cents calculations, smc-3086-40-Change

Number and Algebra, NAP-E2-16

Billy has this much money.
 

 
He buys an avocado for $1.35.

How much money does Billy have left

`text(25 cents)` `text(35 cents)` `text(40 cents)` `text(45 cents)`
 
 
 
 
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`text(35 cents)`

Show Worked Solution

`text(Money at the start)`

`=$1 + 20¢ + 20¢ + 20¢ + 10¢`

`= $1.70`
 

`=>\ text(Money left)` `=$1.70 – $1.35`
  `= 35¢`

Filed Under: Financial Mathematics, Money and Financial Mathematics Tagged With: Band 5, smc-2536-10-Coins, smc-2536-40-Change, smc-3086-10-Coins, smc-3086-40-Change

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`
 
 
 
 
Show Answers Only

`$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`

Filed Under: Financial Mathematics, Money, Money and Financial Mathematics Tagged With: Band 6, smc-2536-30-$ and cents calculations, smc-2536-40-Change, smc-3020-20-$ and cents calculations, smc-3086-30-$ and cents calculations, smc-3086-40-Change

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