Questions and Answers | A+ Score
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Decimals - 🧠 ANSWER ✔✔
Order of Operations - 🧠 ANSWER ✔✔PEMDAS: "Please Excuse My Dear
Aunt Sally"
- Parenthesis
- simplify the Exponents
- Multiply & Divide from left to right
- perform Addition & Subtraction from left to right
, Positive & Negative Numbers: ADDITION - 🧠 ANSWER ✔✔ex. (+4) + (-8) =
-4 (+4) + (-8) = +4
(+4) + (+8) = +12 (-4) + (-8) = -12
Positive & Negative Numbers: SUBTRACTION - 🧠 ANSWER ✔✔Change
the sign of the number after the minus symbol and then follow the same
rules used for addition.
ex. (+4) - (+8) = (+4) + (-8) = -4
Positive & Negative Numbers: MULTIPLICATION - 🧠 ANSWER ✔✔If the
signs are the same the product is positive:
ex. (+4) x (+8) = +32 and (-4) x (-8) = +32
If the signs are opposite, the product is negative:
ex. (+4) x (-8) = -32 and (-4) x (+8) = -32