Basic Math - Adding and subtracting basic numbers

The video tutorial explains how to add and subtract positive and negative numbers. It emphasizes that subtraction is not cumulative, meaning the order of numbers matters. The tutorial demonstrates converting subtraction problems into addition problems when dealing with negative numbers. It also covers the concept of double negatives, explaining how they cancel each other out, turning into a positive. Practical examples are provided to illustrate these concepts, ensuring a clear understanding of how to handle operations involving negative numbers.

Why is subtraction not considered commutative?

• Because subtraction always results in a positive number.

• Because the order of numbers affects the result.

• Because subtraction is the same as addition.

• Because the order of numbers does not affect the result.

What is the result of 5 - 3 compared to 3 - 5?

• 5 - 3 is 2, while 3 - 5 is -2.

• Both are equal to 2.

• Both are equal to -2.

• 5 - 3 is -2, while 3 - 5 is 2.

How can you transform the subtraction 5 - 4 into an addition problem?

• By writing it as 5 + (-4).

• By writing it as 5 + 4.

• By writing it as 4 - 5.

• By writing it as 4 + 5.

What happens when you have a double negative in a mathematical expression?

• It remains negative.

• It becomes zero.

• It turns into a positive.

• It becomes undefined.

If you have the expression 1 - (-47), what is the result?

• 48

• -46

• 1

• -48