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Why can you subtract from a negative number?
Because numbers don't stop. Think of a number (positive or negative) as a point on a number line. You can move to the right by adding to it and to the left by subtracting from it.
How do you use subtraction on coordinate line?
To subtract a positive number, you go the specified number of units to the left. To subtract a negative number (which is the same as adding the corresponding positive number), you go to the right.
How do you put the problem -5 plus 3 on a number line?
Start at the number -5. Adding a positive number implies moving to the right on a number line, so move 3 spaces to the right on the number line. This gives -5 + 3 = -2.
When you add a positive integer move to what on the number line?
The right.
How do you change a number from scientific notation?
Scientific notation is a way of representing numbers in the forma*10b where 1 ≤ |a| < 10 is a decimal number and b is an integer (negative or positive).a is called the mantissa and b is called the exponent.To convert a number in scientific notation to normal form:· If b is positive, move the decimal point b places to the right in the number a - adding 0s at the end of the number, if required.· If b is negative, move the decimal point b places to the left in the number a - adding 0s immediately after the decimal point, if required.For example:4.56*105 = 456000.4.56*10-5 = 0.0000456
