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Multiplying does not always make a number bigger! Multiply by more than 1 and it grows; by less than 1 (like 0.5) and it shrinks. Answer “bigger” or “smaller” without working out the whole sum.
✓ You passed this lesson’s test.
Compare with 1 — “times more than 1 grows, times less than 1 shrinks”
Use it for: Discounts, recipes, maps and scale drawings, and decimals in Class 5–7.
Check: 24 × 0.5 = 12 and 12 < 24 ✓
Work it out in your head or on paper, type the answer and press Check. Stuck? Press “Show me how”.
Right: 0 · Tried: 0
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 🔍 Size Detective badge when you pass — and a certificate when you finish all 9 lessons of Module 3 · Multiplication strategies. You can still take the test without signing in.
Why does it work? When should you use it? Ask in English, मराठी or हिंदी.
Sign in with Google to ask Free — 20 questions a day.
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