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Comparing Object Lengths

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Comparing Object Lengths

Aotearoa’s junior adventure team is choosing equipment for a trip. Use the measurements below to compare, order and calculate lengths. Convert units when needed, and show your working for calculations.

Gear measurements

All lengths were measured carefully. Use these values as your evidence.

Object

Length

Walking pole

1.25 m

Map case

38 cm

Water bottle

26 cm

Paddle

1.8 m

Tent guy rope

2.4 m

Sleeping mat

1.85 m

Walking pole

125 cm

1.Which is longer: the 1.25 m walking pole or the 125 cm walking pole? Explain what happens when you convert one measurement.

2.Order the map case, water bottle and walking pole (1.25 m) from shortest to longest. Write each length in centimetres.

3.How much longer is the sleeping mat than the paddle? Give your answer in centimetres.

4.The team has two guy ropes, each 2.4 m long. What is their total length in metres and centimetres?

5.A gear locker is 2 m long. Which single item from the table is longer than the locker?

The sleeping mat
The paddle
The 2.4 m tent guy rope
The walking pole

6.A team member says, “The sleeping mat is 65 cm longer than the map case.” Decide whether the claim is true and show a calculation.

7.Complete the comparison: 1.8 m 185 cm. Use <, > or =.

8.A repair strap is 35 cm shorter than the 1.25 m walking pole. How long is the strap in centimetres?

9.Place and label the map case (38 cm), water bottle (26 cm) and walking pole (125 cm) on the number line. Which two objects are closest in length?

10.A storage shelf is 3 m long. The team places the 1.85 m sleeping mat and the 1.25 m walking pole end to end on it. Will they fit exactly, be too short, or be too long? Calculate the difference.