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When you get two decimals how do you know where to put the decimal point in the product?
Count the numbers of digits after the decimal points (DP) in the two numbers.Add these numbers together.Calculate the product, including any trailing 0s.Place the DP so that the number of digits after the DP is the same as the sum of the digits after the DP (step 2).Thus, for 15.38 * 0.0045The first number has 2 digits after the DP, the second has 4, so sum of digits after DP is 2+4 = 6.1538*0045 = 69210.The answer must have 6 digits after the DP so you need to insert a 0 after the DP to make it .069210 which can then be simplified to .06921
What is the square root of 62 DP?
7.874 DP (rounded)
Are stem-and-leaf displays easy to construct?
yes just if you are using decimals put the whole number then a line then all the numbers after dp in a row
What is the value of pi and phi?
phi = 1.618 to 3 dp pi = 3.142 to 3 dp
How many decimal places are there in the product of 3.012x6.2034?
7. 3.012 has 3 dp 6.2034 has 4 dp so their product has 3 + 4 = 7 dp. If there are trailing zeros, these would not normally be written and so would reduce the number of dp; the last digit is 2 x 4 = 8, which is not zero, so there will be 7 dp in their product.
