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SOLVING

PROBLEMINVOLVING

LENGTH

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2007 2008

150cm ?cm

10cm

Devi

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In year2007,Devis height was150cm. This year,

Devis height is10cmmore than last year. What is

the height ofDevi now?

160cm

How did youget theanswer?

150cm + 10cm = 160cm

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160cm 155cm

Devi Ita

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Devis height is160cm. Itas height is155cm. What is

the difference between both heights?

5cm

How did youget theanswer?

160cm - 155cm = 5cm

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Iqlimah hasa112cm longred ribbon. Shahira hasa

86cm longred ribbon too. What is the total length of

ribbons they have?

What isgiven?

The length ofthered ribbons.

What isasked for?

The total length ofribbons.

What operation is needed?

Addition.

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Iqlimah hasa112cm longred ribbon. Shahira hasa

86cm longred ribbon too. What is the total length of

ribbons they have?

112cm + 86cm =

112cm

+ 86cm

198cm

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Thecurtain for the dooris15m long. Thecurtain for

the window is13m long? What is the total length of

the twocurtains?

What isgiven?

The length ofthe doorand window.

What isasked for?

The total length ofthe twocurtains.

What operation is needed?

Addition.

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Thecurtain for the dooris15m long. Thecurtain for

the window is13m long? What is the total length of

the twocurtains?

15m + 13m =

15m

+ 13m28m

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Aropeis118cm long.Anisuses94cmoftherope to

tiea box. What is the length oftherope left?

What isgiven?

Length oftherope:118cm

Length used : 94cm

What isasked for?

The length oftherope left.

What operation is needed?

Subtraction.

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Aropeis118cm long.Anisuses94cmoftherope to

tiea box. What is the length oftherope left?

118cm 94cm =

118cm

- 94cm

24cm

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What is the differencein height between PetronasTwin Towersand Menara KualaLumpur?

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What is the differencein height between Petronas Twin Towersand

Menara KualaLumpur?

What isgiven?

Petronas Twin Towers :452m

Menara KualaLumpur:412m

What isasked for?

The differencein height between the two towers.

What operation is needed?

Subtraction.

452m 412m

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What is the differencein height between Petronas Twin

Towersand Menara KualaLumpur?

452m 412m =

452m- 412m

40m

452m 412m

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GROUP

ACTIVITIES

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1. Building Ris48m tall. It is6m taller than building

S. Calculate the height,in m,ofbuilding S.

48m + 6m =

48m

+ 6m

54m

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2.Brian hasaropemeasuring800m.His brother

also hasaropemeasuring487m. What is the

differencein length between theirropes?

800m - 487m =

800m

- 487m313m

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3.Azizis95cm tall and Bakaris83cm tall. What is

their total height?

95cm + 83cm =

95cm

+ 83cm178cm

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1. RiverAis750m long. RiverBis182m longer than

riverA. What is the total length ofthe tworivers?

750m + 182m =

750m

+ 182m

932m

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2. In a long-jumpcompetition, Ruby jumped 4min

thefirst jump. She jumped 5min thesecond

jump. What is the differencein distance betweenthe two jumps?

5m - 4m =

5m

- 4m1m

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THANK YOU