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Does how much mean subtraction or addition?
It could be either. How much doesn't refer to the process, it refers to the answer.
How does a barber use math?
a barber uses math by addition subtraction and multiplecation and how much to give that person what the total is and how much they give you
What are other names for subtraction?
Other names for subtraction include "minus," "take away," "difference," and "decrease." These terms all refer to the operation of finding the result when one quantity is removed from another. Subtraction is the inverse operation of addition, and it is denoted by the "-" symbol.
If you subtract a negative from a positive what do you get?
if you subtract a negative from a positive, you get a positive. subtracting a negative number is like addition, because the subtraction of a "negative," or opposite, results in a "double negative..." For example, 2 - (-5) = 7. It is no coincidence that a "negative" sign and a "subtraction" sign look the same...THEY MEAN THE SAME THING. In terms of money, with which we are all familiar, subtracting a negative is like subtracting a debt. For example, if you borrow $50 to buy a game, your account balance is "-50" because you owe that much money. However, if you pay off $5 a week, after the first week, you've subtracted $5 from the debt that you owe... - 50 - (-5) = 45. Even if you need to rewrite the subtraction problem so that it appears as an addition problem (then to which you can apply the rules for adding numbers with like & different signs), change the subtraction sign to addition, and switch the sign of the second number. {Ex: 2 - (-8) = 2 + (+8) = 10}. Pretend you're in English class... we even use "double negatives" in our everyday speech, where we negate what was just said... Ex: "we will not be having 'no homework tonight.'") In other words, sharpen your pencils, because there is, indeed, an assignment. When subtracting a negative, it's like taking the "opposite of the opposite..." which has you winding up right where you started... the opposite of a negative is a positive, so you add the positive number
What is problem solving skills?
Problem solving skills are skills that are needed to solve problems, such as research skills, being able to think and reason clearly, etc.In math, problem solving skills include being able to select whether to use addition, subtraction, multiplication, or division for word problems, knowing how to add, subtract, multiply, and divide, knowing basic theorems, and much more.
