Understanding Addition and Subtraction Rules

This video tutorial from Mumu Math explains how to add and subtract integers. It covers the rules for adding integers with the same and different signs, and how to handle subtraction by converting it into addition. The video includes example problems to illustrate these concepts and concludes with a reminder to subscribe to the channel for more math tutorials.

What should you do if the problem is addition and the signs are the same?

• Ignore the signs and add the numbers

• Change the signs and subtract

• Add the absolute values and keep the sign of the numbers

• Subtract the numbers and keep the sign of the larger number

If the signs are different in an addition problem, what is the correct approach?

• Multiply the numbers

• Change the signs and add

• Subtract the absolute values and keep the sign of the larger number

• Add the numbers and keep the sign of the smaller number

What is the sign of the result when adding two numbers with different signs?

• Always negative

• Always positive

• The sign of the larger number

• The sign of the smaller number

How do you handle a subtraction problem according to the video?

• Change the subtraction to addition and change the sign of the second number

• Subtract the numbers directly

• Ignore the signs and subtract

• Add the numbers and change the sign of the result

What should you do if the problem is subtraction and not addition?

• Add the numbers and change the sign of the result

• Change the subtraction to addition and change the sign of the second number

• Ignore the signs and subtract

• Subtract the numbers directly

In the example -3 - 12, what is the first step to solve it?

• Subtract 12 from 3

• Change the subtraction to addition and change the sign of 12

• Change -3 to 3 and add

• Add 3 and 12

What is the result of -3 - 12 after applying the rules?

• -15

• 15

• 9

• -9

In the final example, what is the result of -12 + -7?

• -19

• 19

• -5

• 5

What is the first step when both numbers in an addition problem have the same sign?

• Subtract the numbers

• Add the absolute values

• Multiply the numbers

• Change the sign of one number

What is the result of adding two negative numbers?

• A positive number

• A negative number

• Zero

• The absolute value of the numbers