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Measurement, NAP-J3-CA31

Wooden beams for building house frames can be purchased in a number of lengths.

A hardware store can supply lengths of 850 millimetres, 80 centimetres, 190 centimetres, 0.855 metres and 1.8 metres.

Which wooden beam is the longest?

 
 850 millimetres
 
 80 centimetres
 
 190 centimetres
 
 0.855 metres
 
 1.8 metres
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`text(190 centimetres)`

Show Worked Solution

`text(Convert all measurements to metres:)`

`850\ text(mm) = 850/1000 = 0.85\ text(m)`

`80\ text(cm) = 80/100 = 0.8\ text(m)`

`190\ text(cm) = 190/100 = 1.9\ text(m)`

 

`:.\ text(Longest beam is 1.9 metres)`

Number, NAP-G3-NC30

Five people had sticks of different lengths.

Each person measured a 30 metre interval by counting how many stick lengths it took.

The results were put into the table below.
 

 
Which person had a stick that was 60 centimetres long?

John Caroline Paul Simon Ken
 
 
 
 
 
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`text(Simon)`

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`text(Stick lengths) xx 60\ text(cm)` `=30\ text(m)`
  `=3000\ text(cm)`
`text(Stick lengths)` `=3000/60`
  `=50`

 

`:.\ text(Simon has the 60 cm stick.)`

Measurement, NAP-I3-NC05

Dom is measuring long jump at a school athletics carnival.

She measures a jump at 3 metres and 17 centimetres.

Which of these shows how Dom would write this measurement in metres?

`3.017\ text(m)` `3.17\ text(m)` `4.17\ text(m)` `4.2\ text(m)`
 
 
 
 
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`3.17\ text(m)`

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`text(3 metres and 17 centimetres)`

`= 3.17\ text(m)`

Measurement, NAP-C3-NC22

Which of these is the longest distance?

`0.1309\ text(km)` `139\ text(m)` `1390\ text(cm)` `13090\ text(mm)`
 
 
 
 
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`text(139 m)`

Show Worked Solution

`text(Converting all distances to metres:)`

`0.1309 xx 1000 = 130.9\ text(m)`

`139\ text(m)`

`1390/100 = 13.9\ text(m)`

`(13\ 090)/1000 = 13.09\ text(m)`

 

`:.\ text(139 m is the longest distance.)`