Arithmetic · real student question

Find the quotient 43.782 ÷ 6.

Question

Find the quotient

43.782÷643.782\div 6

Step-by-step solution

  1. Notice the divisor is already a whole number. When only the dividend carries a decimal point, no rescaling is needed: you can divide exactly as with whole numbers and simply keep the decimal point of the quotient directly above the decimal point of the dividend.

  2. Divide digit by digit. Working left to right on 43.782÷643.782\div 6:

    43÷6=743\div 6=7 remainder 11 → first digit 77, carry 11;

    17÷6=217\div 6=2 remainder 55 → next digit 22;

    58÷6=958\div 6=9 remainder 44 → next digit 99;

    42÷6=742\div 6=7 remainder 00 → last digit 77.

  3. Place the decimal point. The digits produced are 7,2,9,77,2,9,7 and the point sits after the first of them, because 4343 (the integer part) was consumed first:

    43.782÷6=7.29743.782\div 6=7.297

  4. Check by multiplying back. Division and multiplication are inverse operations, so the quotient times the divisor must return the dividend:

    7.297×6=43.7827.297\times 6=43.782

    7.297\boxed{7.297}

  5. Estimate to confirm the size. 42÷6=742\div 6=7, so the answer had to be a little more than 77 — which rules out common slips such as 72.9772.97 or 0.72970.7297 caused by misplacing the decimal point.

Answer

7.2977.297

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