Seven divided by fifteen equals 0.4666 repeating. Write it out as a long division problem.
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Simple! 15, as a decimal is 15: that's it. No change!
To work out the problem 0.3 x 0.3, you would multiply 0.3 by 0.3. This can be done by multiplying the two numbers as if they were whole numbers, disregarding the decimal points. So, 0.3 x 0.3 is equal to 0.09.
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3.565
To work this out you have to know how to round. To round you start at the right end of number sequence and if the rightmost number is less than 5 you round it down to zero BUT if it is greater than or equal to 5 you round it up to ten and add the '1' on to the next number to the left. Thus 14.75 (which is two decimal places) becomes 14.8 to one decimal place - (14.95 would become 15.0)