Αποτελέσματα Αναζήτησης
How to Add and Subtract. Positive and Negative Numbers. Numbers Can be Positive or Negative. This is the Number Line: No Sign Means Positive. If a number has no sign it usually means that it is a positive number. Example: 5 is really +5. Play with it! On the Number Line positive goes to the right and negative to the left.
So 2 minus negative 3 is the exact same thing as 2 plus 2 plus positive 3. These two statements are equivalent, and this just boils down to, this right over here, is just going to be 5. Now, let's mix it up a little bit more.
Subtracting negative numbers. Subtracting a number is the same as adding the opposite of the number. Let's look at two examples: − 5 − 7 = − 5 + ( − 7) 10 − ( − 3) = 10 + 3. Note: In both examples, we change subtraction to addition and changed the sign of the second number to the opposite sign.
Want to join the conversation? Log in. Sort by: Top Voted. Luke. 11 years ago. I learned this trick and I think it will help you guys: (Example) -7 + 8 = 1. You see -7 plus 8 = 1. Even though it says plus, in this case, we can.
The answer is -2 – 3 = -5. Rule 3: Subtracting a negative number from a negative number – a minus sign followed by a negative sign, turns the two signs into a plus sign. So, instead of subtracting a negative, you are adding a positive. Basically, - (-4) becomes +4, and then you add the numbers. For example, say we have the problem -2 - –4.
rules to remember and follow. Rule 1: Subtracting a positive number from a positive number—this is normal. subtraction. Example 1: Don’t let all this talk of positive and negative numbers throw. you off track—if you see a positive number minus a positive number, subtract it. like normal! For example, if you see 5 – 3, subtract normally! 5 – 3 = 2.
When you subtract a "minus" (that is, a negative) number from another number, you are actually adding a positive number to that other number. For instance, if you have −9 − (−3), that second number represents two reversals.
