Primary 5 Bar Charts III Practice
Primary 5 · 20 practice questions with instant marking and worked solutions.
Bar Charts III is an important part of the Primary 5 mathematics curriculum. This topic develops reading scales, comparing data and choosing representations. Begin by identifying what every number, symbol, diagram and unit represents. Translate the information into a mathematical relationship before calculating. Each line of working should have a purpose. Finally use estimation, substitution, an inverse operation, or a second representation to check the result. This habit separates a misunderstanding from a copying error and makes correction more useful.
A reliable approach to Bar Charts III has four stages. First, mark the given information and the quantity required. Second, choose an appropriate representation, property or formula. Third, carry out the operations in a clear order while retaining signs and units. Fourth, return to the original context and decide whether the result is possible. For a graph or table, read the title, scale and labels before using a value. For algebra, inspect brackets, negative signs and the order of operations before simplifying.
The twenty original questions in this topic use a shared mathematical specification in Chinese and English. Difficulty rises from level 1 to level 5. Early questions establish the language and direct skills of Bar Charts III; middle questions add two-step reasoning, conversions and common variations; later questions connect ideas and require a deliberate check. In multiple-choice work, calculate before looking at the choices. In fill-in and short-answer work, retain decisive steps. For true-or-false statements, support the decision with a calculation or counterexample.
Effective revision is more than recording a score. After completing the Bar Charts III set, group errors by concept tags and decide whether each problem arose from interpretation, forming an expression, calculation, or presenting the answer. Retry the item on a later day without opening the solution, then test the same method with a different value. If the same tag appears repeatedly, return to the explanation and rebuild the concept. If signs or units are the issue, use a fixed pre-submission checklist.
Bar Charts III should also connect with the rest of mathematics. Number and algebra supply calculation tools; measurement and geometry give spatial meaning; data handling asks what a result means. A learner who can explain aloud why every step is valid has moved beyond imitation. Estimate a reasonable range, complete an exact solution, and compare the two. Agreement between context, estimate and exact answer is strong evidence that the solution is sound.
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0 / 20 answered
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1 BasicA chart shows the four values 7, 9, 11, 13. Find their mean. Choose the correct answer.
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2 BasicA chart shows the four values 8, 10, 12, 14. Find their mean. Give the numerical value only.
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3 BasicA chart shows the four values 9, 11, 13, 15. Find their mean. Show the essential working and give the numerical value.
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4 BasicIn Bar Charts III, the value of $6,8,10,12$ is 10. Is this statement true?
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5 StandardA chart shows the four values 11, 13, 15, 17. Find their mean. Choose the correct answer.
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6 StandardA chart shows the four values 12, 14, 16, 18. Find their mean. Give the numerical value only.
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7 StandardA chart shows the four values 13, 15, 17, 19. Find their mean. Show the essential working and give the numerical value.
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8 StandardIn Bar Charts III, the value of $10,12,14,16$ is 13. Is this statement true?
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9 AdvancedA chart shows the four values 15, 17, 19, 21. Find their mean. Choose the correct answer.
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10 AdvancedA chart shows the four values 16, 18, 20, 22. Find their mean. Give the numerical value only.
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11 AdvancedA chart shows the four values 17, 19, 21, 23. Find their mean. Show the essential working and give the numerical value.
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12 AdvancedIn Bar Charts III, the value of $14,16,18,20$ is 18. Is this statement true?
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13 ChallengingA chart shows the four values 19, 21, 23, 25. Find their mean. Choose the correct answer.
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14 ChallengingA chart shows the four values 20, 22, 24, 26. Find their mean. Give the numerical value only.
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15 ChallengingA chart shows the four values 21, 23, 25, 27. Find their mean. Show the essential working and give the numerical value.
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16 ChallengingIn Bar Charts III, the value of $18,20,22,24$ is 21. Is this statement true?
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17 EliteA chart shows the four values 23, 25, 27, 29. Find their mean. Choose the correct answer.
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18 EliteA chart shows the four values 24, 26, 28, 30. Find their mean. Give the numerical value only.
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19 EliteA chart shows the four values 25, 27, 29, 31. Find their mean. Show the essential working and give the numerical value.
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20 EliteIn Bar Charts III, the value of $22,24,26,28$ is 26. Is this statement true?
The report lists what you got wrong and why. Only you can see it.
Common mistakes
Common mistakes in Bar Charts III
This topic needs particular care with reading scales, comparing data and choosing representations. The first mistake is applying a remembered rule before reading all conditions. The second is compressing working so much that a sign, bracket, decimal point or unit disappears. The third is accepting an impossible answer without checking: for example, a probability above one, a negative physical length, an angle outside the geometric constraints, or a result far from the estimate. Separate the conditions, model, calculation and check, and finish by stating what the answer represents.
Keep missing the same type?
Repeating the same mistake usually means an earlier concept never landed. We find that step in the trial lesson.