Solve the following problem:
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Solve the following problem:
Let's remember the rule:
Let's write the exercise in the appropriate form:
Let's solve the exercise from left to right:
We obtain the following exercise:
Let's remember the rule:
Let's write the exercise in the appropriate form:
Let's solve the exercise from left to right:
What will be the sign of the result of the next exercise?
\( (-2)\cdot(-4)= \)
Think of it like this: subtracting means taking away, and a negative number represents debt. When you take away debt, you're actually gaining money! So .
For addition and subtraction only, work from left to right. Since there are no parentheses, exponents, or multiplication/division here, just go step by step: , then , then .
They're exactly the same! . The plus sign before a negative number doesn't change anything - it's like saying add negative six, which is the same as subtracting six.
First, convert all double negatives to positives. Then rewrite the expression clearly: . This makes it much easier to calculate step by step!
Yes! You can calculate (positives) and (negatives), then do . This grouping method often prevents calculation errors.
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