Multiplying decimals by 3 digit decimals and i don't gget it on example: 34.56
x0.40
_______
?????
Multiply the normal way.
Then, since you have four decimal places in the problem, you must have 4 decimal places in the answer.
http://www.google.com/search?source=ig&hl=en&rlz=&q=34.56+*0.40&aq=f&oq=
To multiply decimals by 3-digit decimals, follow these steps:
Step 1: Write the numbers in a column, aligning the decimal points.
34.56
x0.40
_______
????
Step 2: Ignore the decimal points for now and multiply the numbers as if they were whole numbers.
3456
x 40
_______
????
Step 3: Multiply the numbers in each place value position, starting from the right. Write each partial product below the horizontal line.
3456
x 40
_______
0000 (This is the partial product for the ones place)
13824 (This is the partial product for the tenths place)
Step 4: Add the partial products. Start from the right and carry over if necessary.
3456
x 40
_______
0000
13824
_______
????
Step 5: Place the decimal point in the result. Count the total number of decimal places in the original numbers and put the decimal point in that position in the answer. In this case, there are 2 decimal places in 34.56 and 2 decimal places in 0.40. So, the final answer will have 4 decimal places.
3456
x 40
_______
0000
13824
_______
13.8240
Therefore, the answer to 34.56 multiplied by 0.40 is 13.8240