Halen wrote the prodect 0.4 for the problem .5×.8.Don says that is not correct since when you multiply tenths by tenths the product will be in the hundreths.Is Don right?
Don is not right. We often drop zeroes that are at the end of decimals.
0.4 = 0.40 = 0.40000000
Halen is correct because if the 4 is behind the whole number after the decimal point its going to the right and if its not its going to the left so don is not correct.
No, Don is not correct. When multiplying tenths by tenths, the product will be in hundredths. Let's calculate the product to confirm:
0.5 multiplied by 0.8 equals 0.4
So, the product of 0.5 and 0.8 is indeed 0.4, which is in tenths, not hundredths.
To determine if Don is right or not, let's first calculate the product of 0.5 and 0.8.
To multiply decimals, you multiply the numbers as if they were whole numbers, ignoring the decimal point. Then, count the total number of decimal places in the original numbers. This will give you the position of the decimal point in the final product.
In this case, 0.5 × 0.8 equals 0.4. Both numbers have one decimal place, so the product should have two decimal places.
Now, let's compare the result to what Halen wrote.
Halen wrote the product as 0.4, which has only one decimal place. According to our calculation, the correct answer should be 0.40, with two decimal places.
Therefore, Don is correct. When you multiply tenths by tenths, the product will be in hundredths.