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Number and Algebra, NAP-K2-05 SA

In a tennis competition a player won 7 games and lost the other games.

Altogether she played 15 games.

Finish the subtraction sentence below to show the number of games she lost.

`\ - 7 =`
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`15 – 7 = 8`

Show Worked Solution

`15 – 7 = 8`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 4, smc-3084-20-Subtraction, smc-3084-50-Find equation, smc-693-20-Subtraction, smc-693-50-Find equation

Number and Algebra, NAP-J2-14 SA

Cameron grew 146 lettuces in his vegetable garden.

A goat got into his garden and ate some lettuces, so there was only 112 lettuces left.

How many lettuces did the goat eat?

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`34`

Show Worked Solution
`text(Lettuces eaten)` `= 146 – 112`
  `= 34`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 5, smc-3084-20-Subtraction, smc-693-20-Subtraction

Numbar and Algebra, NAP-F2-20

Ryan is walking a trail that is 3250 metres long.

He has walked 2419 metres so far.

How many metres are left for him to walk?

`831` `839` `841` `1239`
 
 
 
 
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`831`

Show Worked Solution
STRATEGY: Do this subtraction in bite size pieces by subtracting thousands first, then hundreds, then the balance (as per the solution).
`3250 – 2419` `=1250-419`
  `=850-19`
  `=831`

 

`:.\ 831\ text(metres left to walk.)`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 6, smc-3084-20-Subtraction, smc-693-20-Subtraction

Number and Algebra, NAP-G2-29 SA

Marcel has the six cards pictured below
 

 

 
Marcel can arrange the six cards into a number sentence that make a total, as shown below.
 

  
What is the largest total Marcel can make using all the cards in a number sentence?

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`971`

Show Worked Solution

`text(The largest total is made when the highest 3 digit)`

`text(number has the smallest 1 digit number deducted.)`

`=> 973 – 2 = 971`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 7, smc-3084-20-Subtraction, smc-3084-50-Find equation, smc-693-20-Subtraction, smc-693-50-Find equation

Number and Algebra, NAP-G2-13

Munro has $86.
 

 
How much more money does he need to buy the tennis racquet?

`$42` `$48` `$52` `$58`
 
 
 
 
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`$48`

Show Worked Solution

`text(Extra money needed for racquet)`

`=134-86`

`=$48`

Filed Under: Financial Mathematics, Money and Financial Mathematics, Solving problems - Add/Subtract, Solving Problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 5, smc-2536-20-Whole $ calculations, smc-3017-20-Subtraction, smc-3017-40-3-digit calculations, smc-3084-20-Subtraction, smc-3086-20-Whole $ calculations, smc-693-20-Subtraction

Number and Algebra, NAP-D2-40 SA

In the Japanese calendar, 2013 is the Year of the Snake.

The Year of the Snake occurs every 12 years.

What year was the second Year of the Snake after 1970?

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`1989`

Show Worked Solution

`text(Going backwards, the Years of the Snake are:)`

`2013, 2001, 1989, 1977, 1965`

`:.\ text(S)text(econd Year of the Snake after 1970)`

`text(was 1989.)`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 10, smc-3084-20-Subtraction, smc-693-20-Subtraction

Number and Algebra, NAP-I2-05 SA

The scales below are evenly balanced.
 

 
What is the weight of the small cube?

   grams
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`13\ text(grams)`

Show Worked Solution

`text(S) text(ince the scales are evenly balanced,)`

`36` `= 23 + text(weight of small cube)`

 

`:.\ text(Weight of small cube)` `=36-23`
  `=13\ text(grams)`

Filed Under: Solving problems - Add/Subtract, Solving problems - Add/Subtract Tagged With: Band 4, smc-3084-20-Subtraction, smc-693-20-Subtraction

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