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Do you mean on a number line? If so then this is because in maths the lowest numbers go on the left... This is just convention! Therefore when you add, the number increases so you move further to the right! Hope this helps from Italic 97
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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
What is a negative subtracted by a negative?
Subtracting a negative number has the same effect as adding a positive number - think of it as moving right on a number line whereas, subtracting a positive number will move you left on a number line.
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.
When subtracting a negative number why do you move to the right on the number line instead of the left?
Subtracting a negative number is the same as adding a positive number. Also, adding a negative number is the same as subtracting a positive number. -7 + (-5) = -7 - 5 = -12 -7 - (-5) = -7 + 5 = -2
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.
Why do 2 negatives equal a positive?
On the number line if you subtract a positive you move left. If you add a positive you move right. If add a negative you move left. If you subtract a negative you move right. That is just how I learned it. I don't know a wordy explanation.
What are 5 numbers that are not integers?
Integers include positive whole numbers, negative whole numbers, and zero.The "set of all integers" is often shown like this:Integers = {… -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, …} The dots at each end of the set mean that you can keep counting in either direction. The set can also be shown as a number line:The arrows on each end of the number line mean that you can keep counting in either direction.Adding and Subtracting IntegersLooking at a number line can help you when you need to add or subtract integers.Whether you are adding or subtracting two integers, start by using the number line to find the first number. Put your finger on it. Let's say the first number is 3.Then, if you are adding a positive number,move your finger to the right as many places as the value of that number. For example, if you are adding 4, move your finger 4 places to the right. 3 + 4 = 7If you are adding a negative number, move your finger to the left as many places as the value of that number. For example, if you are adding -4, move your finger 4 places to the left. 3 + -4 = -1If you are subtracting a positive number, move your finger to the left as many places as the value of that number. For example, if you are subtracting 4, move your finger 4 places to the left. 3 - 4 = -1If you are subtracting a negative number, move your finger to the right as many places as the value of that number. For example, if you are subtracting -4, move your finger 4 places to the right. 3 - -4 = 7Here are two rules to remember:Adding a negative number is just like subtracting a positive number. 3 + -4 = 3 - 4Subtracting a negative number is just like adding a positive number. The two negatives cancel out each other. 3 + 4 = 3 - -4
When you subtract integers do you always move left on a number line?
No.If you subtract a positive number, you move to the left.If you subtract a negative number, you move to the right.
Why does a negative multiplied by a negative equal a positive?
The answer to this is a little counterintuitive. positive X positive = positive negative X positive = negative positive X negative = negative negative X negative = positive Do you see the pattern? Two positives and two negatives will always be positive. Think of yourself standing on a number line. If you're a positive number you will be facing to the right. If you are multiplied by a positive number you will move to the right (positive). If you are negative number, you will be facing to the left, but when multiplied by a negative number you have to move backwards, which is now to the right--a positive number! Think of yourself as always facing right when a positive number and facing left when a negative number and then go forward or backward with the next number.
How do you use number line subtraction negative big numbers?
Subtracting a negative is the same as adding a positive, so you would move that many to the right on the number line. For example, 4 - (-20) is the same as 4 + 20, so you would start at 4 and move 20 spaces to the right, and end up with 24 as your answer.
How do you evaluate scientific notation?
A number in scientific notation is written as a * 10b where 1 ≤ a < 10 (although a can be negative with the domain reversed) and b is an integer (negative or positive).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 leading 0s after the decimal point, if required.For example:4.56*105 = 456000.4.56*10-5 = 0.0000456
