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How do you make -10 using only numbers 1-9 by adding and subtraction and only use each number once?
Wiki User
∙ 13y ago
I may be wrong but it seems impossible. There probably is proof somewhere if it is.
Wiki User
∙ 13y ago
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A number written using digits?
Most people prefer to write numbers using digits since this is far shorter than writing out the relevant words.
How many five digits numbers can be formed using 01234 without repetition assuming that number cannot begin with 0?
There are 4*4*3*2*1 = 96 such numbers.
How many two digit numbers can be made using 0-9?
9
Box a contains the numbers 1 2 3 and 4 box b contains the numbers 5 6 7 and 8 a number is first drawn from box a and then another number from box b using figure 42 how many outcomes are?
the answer will be nothing
How many 4 digit numbers can be created using 5 6 7 and 8 using each digit only 1 time in a number?
24 = 4*3*2*1 of them
How do you add number using significant digits?
Adding numbers using only the significant digits can introduce inaccuracies, for example if you are adding pi ten times using 4 decimal places of pi the answer is 31.416 but the right answer is 31.4159 . . Subtracting can give quite bad errors especially when two nearly equal numbers are subtracted. So for subtraction it's best to use more significant figures and round the answer to the required number of digits afterwards.
What is the disadvantage of using scientific notation?
If you are adding or subtracting two numbers in scientific notation, you must rewrite one of the numbers to the same power of ten as the other, before performing the addition (or subtraction).
Why would you use addition to solve a subbtraction problem?
Addition can be used to solve a subtraction problem by using the concept of inverse operations. By adding the opposite of a number to another number, the result will be the same as subtracting the first number from the second number. This can be helpful in mental math or when trying to simplify complex subtraction problems.
How do you find the difference using mixed numbers?
first add the whole numbers then do simple fraction subtraction
How did the Greeks subtract using the ancient Greek numeral system?
The Greeks used a combination of addition and subtraction to perform subtraction in their numeral system. They would determine the difference between two numbers by adding the complement (the number that, when added, would equal the base of the numeral system) of the subtrahend (the number being subtracted) to the minuend (the number being subtracted from). This process involved breaking down the numbers into their place values and performing the necessary computations.
How do you find the perimeter of a rectangle using subtraction?
i dont no if you can find the perimeter of a triagle by using subtration the formula is adding all the up together.
Can you predict the number of factors of any number by writing the prime factorization using exponents then adding one to the exponent and then finding the products of these numbers?
Yes.
What is the difference 3057 and 1157?
If you are using the above numbers in a subtraction equation, the difference is 1900, i.e 3057 minus 1157 equals 1900. You can check this is correct by adding 1900 to 1157, your answer should be the original 3057. If you mean literally the difference is the numbers 30 & 11
How do you get any of the same three numbers to equal one greater then them using only addition subtraction division and multiplication?
Divide the first two of the same three numbers by eachother, and then add the third same number to the answer you get.
What equations equal number 68 when using subtraction?
77-9=68
Which operations require you to align numbers using their decimal points before you begin a calculation?
Addition and subtraction.
How could you perform a subtraction and division from number 7 without using a odd number and the result is even?
(7 - 2)/0.5 = 10 Neither 2 nor 0.5 are odd numbers, but 10 is even.
