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same number of significant digits

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Q: What must each number have when adding and subtracting scientific numbers?
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Related questions

Is quotient subtracting or adding?

Quotient is the number you get when dividing two numbers.


What is equivalent to adding a negative number?

Subtracting its additive inverse. (In principle, this is valid for adding positive numbers as well.)


How do you substract negative numbers?

Subtracting negative numbers is exactly the same as adding the positive number.


What is the difference between adding and subtracting?

Adding is when you add numbers to something and subtracting is when you take them away. When you add you do not always make the number go up for example 5 + (-7)= -2.


How do you explain adding and subtracting negative numbers?

Adding a negative number is equivalent to subtracting a positive number. For example, adding -3 is the same as subtracting 3. Subtracting a negative number is equivalent to adding a positive number. For example, subtracting -3 is the same as adding 3. The rule to remember is that when you have a negative sign in front of a number, it actually changes its sign.


Why subtracting a negative number is equivalent to adding a positive number?

equivalent to subtracting a negative


How is adding on number line different from subtracting on a number line?

When subtracting, the number moves to the left (negative direction). When adding, the number moves to the right (positive direction).


Why is it important to align decimal point when adding or subtracting decimal numbers?

Because if you dont , your answer will be a whole number and that will make your answer wrong


What are the rules when adding or subtracting negative numbers?

When subtracting negative numbers change the subtraction sign to a plus and change the second number (which would appear to be positive) to a negative. ex. -14 - 7=?/-14 + -7= -21 When adding negative numbers just add them as they appear. ex. -2 + -5= -7


What is the magic number on picking numbers 1-9 multiplying by 2 adding 12 subtracting 12 and dividng by 2?

Works for all numbers possible


What happens to the decimal in adding and subtracting decimals?

When you are adding and subtracting decimals, youare +/- ing the whole numbers and tenths in the number. the decimal might go away ex: 1.3-0.3=1 or it won't ex: 1.9-0.3=1.6


Is the May 21 2011 real?

no it's just adding & subtracting numbers from the bible till you get the number you wantit's a load of rubbish