Critical thinking · lesson 16 of 24 · free

Fair comparisons — Critical thinking for kids

Kabir scored 40 runs in 5 overs; Saanvi scored 30 runs in 6 overs. Who scored faster? Compare runs per over: Kabir 40 ÷ 5 = 8, Saanvi 30 ÷ 6 = 5. A fair comparison keeps the conditions the same — the same track, the same paper, the same amount of water — or compares per day, per over or per kg.

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Thinking tip

Compare per day, not the totals — “keep everything the same except the one thing you compare”

  1. Different amounts of time? Divide: per day, per over, per hour. 40 runs in 5 overs = 8 per over.
  2. Fair: both plants got the same water and sun; only the soil was different. Unfair: one plant in the sun, one in a cupboard.
  3. Prices: compare per kg — a 2 kg bag for ₹80 is ₹40 a kg, cheaper than a 1 kg bag for ₹45.

Use it for: Sports scores, shopping, science experiments, marks in different tests and speed.

Worked example: 🏏 Saanvi scored 30 runs in 6 overs. Kabir scored 40 runs in 5 overs. Who scored more runs per over? → Kabir

  1. Per over: Saanvi 30 ÷ 6 = 5, Kabir 40 ÷ 5 = 8.
  2. 8 is more than 5, so Kabir scored more runs per over.

Check: Try it: compare two packets of biscuits at home by price per 100 g ✓

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✏️ Practice

Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.

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🏁 Lesson 16 test

20 questions. Check each answer, then go to the next one. Get 16 or more right to pass.

🏅 Sign in with Google to earn the ⚖️ Fair Comparer badge when you pass — and a certificate when you finish all 6 lessons of Part 3 · Reason it out. You can still take the test without signing in.

🖨️ Fair Comparisons Worksheet for Kids

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