helping my daughter with homework. when do by hand i get
322.179 when checked by calculator we get 322.280. i know my remainder of 179 is correct why is calculator showing dif remainder. i have had this before with another math problem...
2007-09-11 16:28:36 · 4 answers · asked by yvicks 4 in Science & Mathematics ➔ Mathematics
When a calculator reports "322.280", the "280" is not a remainder. It's simply the digits following the decimal point. Calculators do not report remainders, they report exact answers, correct to the precision of the calculator (often 10 to 14 digits).
Additionally a remainder should always be expressed as a fraction of the divisor. If you do long division and get a remainder of 179, write this:
"322 remainder 179/639"
You'll note that 179/639 = 0.280...
Putting the remainder after the decimal point is NOT correct practice, and will confuse anyone who looks at it.
2007-09-11 16:43:08 · answer #1 · answered by lithiumdeuteride 7 · 1⤊ 0⤋
The remainder is 179.
The .280 that comes out in the calculator doesn't represent the exact remainder. It represents the actual remainder in a decimal form.
Jus like if you divide 28/3 for example, the answer is 9 remainder 3. But in the calculator it comes out a 9.3333333 not 9.1
I hope this helped.
2007-09-11 23:45:20 · answer #2 · answered by Lady_L 1 · 1⤊ 0⤋
Your answer is 322 with a remainder of 179 (not 322.179)
322*639 + 179 = 205937
The answer with the calculator is 322.280 to 3 decimal places which is 322 280/1000. 280 is NOT the remainder.
322*639 + 280/100 * 639 = 205936.92 which is close to 205937.
2007-09-11 23:40:28 · answer #3 · answered by gudspeling 7 · 1⤊ 0⤋
also, 0.280 times 639 equals 178.92, almost your
remainder of 179.
2007-09-11 23:43:10 · answer #4 · answered by les 4 · 1⤊ 0⤋