Hello my name is Kaitlin and I am in fifth grade. I just recently had a test on multiplying decimals and I did not do really well on it. Only 5 kids out of 19 got a passing grade. My teacher says that she will give us a different test and we can take it again, but I'm still not sure of it. My teacher has taught me a lot and she had done a wonderful job of it but I'm just confused with where to put the decimals and stuff like that. I have a math practice workbook that I do for fun and they have nothing on decimals in it. I have checked on websites to try to find worksheets but I really couldn't find a good one. Can you please help me either give me some tips or clues or send me a worksheet. I'm a good student and I do not want to do bad on the test next time. Even if you do not get this by the time I take the test I would still like to know how to do it for the up com! in! g years. Thank you very much. Sincerely, Kaitlin Hi Kaitlin, Suppose that you have to multiply 2.13 by 5.1. I would get 2.13 5.1  213 1065  10863Now count the digits to the right of the decimal in the two numbers you multiplied. In 2.13 there are 2 digits to the right of the decimal and in 5.1 there is 1 digit to the right of the decimal. Thus in the two numbers you multiplied there is a total of 3 digits to the right of the decimals. Thus, in the answer you need a 3 digits to the right of the decimal. Hence the answer is 10.836. You can also use an aproximation to determine where the decimal should go. 2.13 is a little more than 2 and 5.1 is a little more than 5 so 2.13 x 5.1 is a little more than 2 x 5 which is 10. Thus when you multiply and get 10863 you know that the decimal should go between the 0 and the 8. Lets do another, 22.53 x 13.41 This time I'll do the approximation first. 22.53 x 13.41 is approximately 20 x 13 = 260. Now multiply 22.53 13.41  2253 9012 6759 2253  3021273 Using the approximation method the answer is 302.1273. Certainly 30.21273 is too small and 3021.273 is too large. Using the counting technique, there are 2 digits to the right of the decimal in 22.53 and 2 digits to the right of the decimal in 13.41, thus there should be 2 + 2 = 4 digits to the right of the decimal in the answer. Hence the answer is 302.1273 I hope this helps,Penny
