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You do not need a new method to multiply decimals. Ignore the points, multiply the whole numbers you already know, then count how many digits sat after the points in the question. The answer gets that many decimal places.
✓ You passed this lesson’s test.
Count the places — “the answer has as many decimal places as both numbers together”
Use it for: Prices of 1.5 kg of vegetables, areas in square metres, and decimals in Class 6–8.
Check: 2.5 × 1.4 = 2.5 + 2.5 × 0.4 = 2.5 + 1 = 3.5 ✓
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 — and beat the clock: finish within 4 min.
🏅 Sign in with Google to earn the 🔢 Decimal Driver badge when you pass — and a certificate when you finish all 10 lessons of Part 4 · Speed decimals, fractions and percentages. 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.
Prefer a real teacher? TalentJR teachers take live online classes anywhere in India and visit homes in selected cities. Tell us what you need and our team will call you with timings and fees.