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How do you prevent a negative sign appearing when you have multiplied a percentage by a total?
If the percentage and the total are both positive numbers, then there's no reason for the appearance of a negative sign.
What if you have a negative plus a positive number?
Negatives and subtraction go hand - in - hand For Example, - 5 + 3 = - 2 could be also seen like this. 3 - 5 = = -2 Your answer will be negative if the number with the negative sign is bigger than the number with the positive term. If both numbers are negative then you add them up as normal numbers like positive and just put a negative before the total. - 5 - 5 = - 10 - 5 + (- 5) = -10
What is the sum of first 10 positive numbers?
The first ten positive numbers total 55.
What are the rules for adding and subtracting negative and positive numbers?
Addition and Subtraction of Positive and Negative numbers is very simple once you grasp the knowledge of how to do it. Simply remember when a + and a - are together you - the values and when the signs are the same you + the values. -+ = - +- = - ++ = + -- = + Examples: [1] 10 + -9 = 10 (+-) 9 = 10 - 9 = 1 [2] 10 - +9 = 10 (-+) 9 = 10 - 9 = 1 [3] 10 + +9 = 10 (++) 9 = 10 + 9 = 19 [4] 10 - - 9 = 10 (--) 9 = 10 - 9 = 1 Note : The above is much too complex for younger student minds. FIRST Rule : Gather together all the numbers with the same signs. Then add all the positive numbers together. Do the same for the negatives. Finally, subtract the negative total from the positive total, to get the final combined total or answer.
How many eight digit numbers are there?
There are 90,000,000 whole numbers.If you include negative numbers, this doubles to 180,000,000.If you include decimal numbers, eg 1.2345678, there are 666,000,000 positive numbers, disallowing numbers with extraneous 0's.Including negative numbers, this doubles to 1,332,000,000If you allow trailing 0's in the decimal place, than this becomes 730,000,000 non-negative numbers, or 1,459,999,999 numbers (since -0.0000000 = 0.0000000)If you allow a decimal point without a digit in front, there are a further 90,000,000 non-negative numbers, or 180,000,000 including negative numbers.Allowing trailing 0's, this becomes 100,000,000 non-negative or 199,999,999 numbers.Maximum total:1,659,999,998 allowing trailing 0's, and allowing numbers without a digit in front of the decimal point.
