Real-world Problems: Challenge & Extension
Mathematics
Grade 8
12 questions
~24 mins
1 views0 downloads
About This Worksheet
A worksheet focusing on solving real-world problems involving estimating calculations, designed to challenge and extend students' understanding of number and quantity applications.
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Real-world Problems: Challenge & Extension
Subject: MathematicsGrade: Grade 8
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Untitled Worksheet
Grade Grade 8
A
Practice Questions
Answer all questions. Show your working in the grid spaces provided.
1.
Estimate the total weight of 15 boxes if each box weighs approximately 3.5 kg.
[2 marks]2.
A car travels 240 km in 4 hours. Estimate its average speed and round to the nearest km/h.
[2 marks]3.
Calculate approximately how many liters of paint are needed to paint a wall measuring 12 meters by 3 meters if 1 liter covers about 10 square meters.
[2 marks]4.
A supermarket orders 125 kg of apples weekly. If each apple weighs about 150 grams, estimate how many apples are in the shipment.
[2 marks]5.
A factory produces 1,200 units of a product daily. If production drops by 15% due to maintenance, estimate the new daily output.
[2 marks]6.
A farmer estimates that he has 2.5 acres of land. If one acre can produce about 800 kg of wheat, estimate the total wheat yield.
[2 marks]7.
A container holds 75 liters of water. If it is filled to 80% capacity, how many liters of water are in the container?
[2 marks]8.
Plot the graph of y = 2x for x values from 0 to 5. Use the grid to draw the line.
[2 marks]9.
Construct a triangle with sides measuring approximately 6 cm, 8 cm, and 10 cm. Use the grid to draw it accurately.
[2 marks]10.
A delivery truck covers 180 km in 3 hours. Estimate its speed if the driver travels at a constant rate, and then verify the estimate.
[3 marks]11.
A bakery bakes 250 loaves of bread daily. If normally each loaf weighs 800 grams, but due to a miscalculation, the loaves weigh only 750 grams, estimate the total weight loss in the daily batch.
[3 marks]12.
Error Analysis: A student estimates 8.5 km for a 10 km journey but marks the answer as 8 km. Identify the mistake and suggest the correct estimate.
[2 marks]Quick Actions
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Details
- Created
- 1/1/2026
- Updated
- 1/1/2026
- Type
- worksheet