Grade 12 · CAPS

Grade 12 Measurement

Mathematical Literacy practice questions and a worked example

Grade 12 Mathematical Literacy measurement questions from the NSC papers ask you to convert units, work out area, surface area and volume, and calculate time, distance and speed. The contexts are practical: concrete for fence posts, paint for wooden tags, a cylindrical oil tower and bricks for a garage wall. Use them to practise setting out each step with the right unit.

Worked example

2.3.6 A receptionist at the Pretoria Hotel has to report for work by 05:30. She takes 10 minutes to walk from home to board a taxi. - She leaves home at 04:55. - She rides in a taxi for 20 minutes. - She walks 5 minutes from the taxi stop to the hotel. Verify whether or not the receptionist will get to work on time.

Answer & explanation

Arrival time = 04:55 + 10 min + 20 min + 5 min = 05:30. The receptionist will be on time for work.
First, calculate the total time it takes for the receptionist to get to work. She leaves home at 04:55. It takes her 10 minutes to walk to the taxi, so she reaches the taxi at 05:05. The taxi ride takes 20 minutes, so she arrives at the taxi stop near the hotel at 05:25. Finally, she walks 5 minutes to the hotel, arriving at 05:30. Since she needs to be at work by 05:30, she will be on time.

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Measurement

Question 1 of 3

1.1.2 Use TABLE 1 above to write down the letter of the explanation or definition (A to G) of the concept: Surface area.

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More practice questions

Explore additional Grade 12 Measurement questions.

  • 2
    3.1.2 Andrew caught a carp with a mass of 2,375 kg. Duncan caught two carp, one weighing 1,2 kg and the other 750 g. Determine, in kg, the total mass of the carp they caught.
  • 3
    3.2.1 Calculate, in m3, the total capacity of all the holes dug for the required posts. You may use the formula: Volume = length × width × depth
  • 4
    3.2.2 Andrew mixed the same volume of concrete as the volume calculated in QUESTION 3.2.1. Give an explanation why he had some concrete left over after planting all the posts in the holes with concrete.
  • 5
    3.2.3 The concrete is made from a mixture of cement, river sand and stone in the ratio as illustrated below. 0,75 m3 of concrete requires 5,5 bags of cement. One level wheelbarrow full of river sand weighs 102 kg. Calculate the mass of river sand needed to make 1 m3 of concrete.

Common mistakes

  • Mixing units, for example cm² and m², in the same calculation.
  • Rounding off part-way through a calculation instead of at the end.
  • Rounding down when you need to buy whole items, such as bags or lengths of piping.

More Grade 12 Mathematical Literacy topics

Measurement in other grades

Aligned to CAPS Grade 12 Mathematical Literacy — Measurement. Curriculum source: CAPS for the FET Phase, Department of Basic Education.

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