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What two decimals are equivalent to 0.68?

My daughter's math homework is to write two decimals equivalent to each number. I'm a little confused about the assignment in general, but can you help?

Asked by Sogi at 4:56 PM on Sep. 10, 2009 in

Level 1 (0 Credits)
• .47 and .85....i think

Answer by Anonymous at 4:59 PM on Sep. 10, 2009

• I think you add zeroes at the end maybe...
I really can't remember!

Answer by Lauren24 at 5:05 PM on Sep. 10, 2009

• It's been awile since I did this math but I think the answers are .34 & .17. Convert the decimal to a fraction which would be 68/100. That's not the end because you can divide by a common demonator which we can start with 2. Divide by 2 and get 34/50 which is .34 in decimal, divide by 2 again which would be 17/25 which is .17 decimal and from there you can't go any lower without changing the value. To check your answers put 34/50 times x/100 and cross multiply 34x100=3400 and divide by 50=68.

Hope my math helped and hope I gave you the right answers since it's been a long time since I've done this.

Answer by momtotrips at 5:27 PM on Sep. 10, 2009

• equivalent means equal to. I would have to say they are looking for other decimals that would round to that number. like 0.679. or 0.6823. When rounded to nearest hundreth they equal 0.68

Answer by mkrmomma1 at 6:18 PM on Sep. 10, 2009

• Adding zeros after the decimals is the only way to do it. It would be 0.680 and 0.6800 or 0.68000 and 0.680000. It's seems pointless, but the reason we have kids do it is to teach them the zeros added at the end of a decimal have no value.

momotrips, good thought, but you can't convert decimals like that. .34 is thirty-four hundredths, it's a part out of 100 it's not equal to 0.68 (sixty-eight hundredths). I can see where you were coming from though!

Answer by MAUREEN55 at 6:27 PM on Sep. 10, 2009

• I agree with Maureen55! Adding 0's to the end of a decimal doesn't change the value of that decimal, just the accuracy.

P.S. -- I homeschool my kids, so this is something that I have to "re-learn" every year! LOL

Answer by amy_k_in_pa at 8:04 PM on Sep. 10, 2009

• My kid just did this, and he was supposed to add 00000 to the end of the number.

Answer by mancosmomma at 9:42 AM on Sep. 11, 2009

• based on a quick google serach, the posts about adding 0s are correct. Although, I don't see the point of that homework assignment.

.68
.680
0.680
.6800
0.6800

etc.

Answer by Anonymous at 12:41 PM on Sep. 11, 2009

• 0.6800

Answer by Anonymous at 3:05 PM on Sep. 11, 2009

• Could it be 0.6+0.08? I'm thinking it wants to teach the "tenths" and "hundredths".

Answer by MonicaE521 at 5:27 PM on Sep. 13, 2009

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