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Explain how you know the number of decimal places that should be in the product when you multiply two decimal numbers together?
"You have to count the spaces to the right to know how many spaces you have to put."
How can you determine the number of decimal places in your your final answer when multiplying with deciamles?
oh its quite simple, lets say you have a problem like 12.5 times 2.5 first you would find how much this is which would be 3125. then to find the decimal place, just count how many spaces are in each factor (12.5 and 2.5) as you can see, the decimal in 12.5 is one space that way <. and in 2.5 the decimal is also one space that way <. so how many spaces are there? two spaces! now we go back to 3125. if we were to place the decimal, we would first count up to how many spaces there are to the left (in this case two spaces) then we would go back to our answer and count two spaces to the left: 31.25! we started out with 3125 and to find the decimal place we started before the five and counted two spaces to the left which would be < that way! ta da!
Rules in converting scientific notation to decimal notation?
to convert scientific notation to decimal you count the number of spaces up to the last digit then put the decimal point then put x10 to the power of if how many places you move the decimal point.................................
11 cm is how many meters?
.11 meters You are just moving the decimal place two spaces to the left. 100cm=1m
What are the methods to move over decimals in multiplication?
You don't need to move the decimal, just put the decimal as many spaces over in your answer as there are in the two numbers multiplyed. Example: 1.2 x 1.22 = 1.464
