Solve the following expression:
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Solve the following expression:
Note the following rule:
Now let's write the exercise in the appropriate form:
We'll locate -302 on the number line and go right 7.6 steps:
Note that our result will be negative.
Let's solve the exercise carefully by adding a decimal point to the number 302 to avoid confusion during the solution:
Note that the final answer is negative, meaning:
a is negative number.
b is negative number.
What is the sum of a+b?
Think of it as "removing a debt"! If you owe someone 7.60 better off (positive). So subtracting negative 7.6 adds 7.6.
Use the phrase "minus a minus is plus"! The two negative signs cancel each other out, just like in grammar where "I don't know nothing" means "I know something."
Yes! When calculating -302 + 7.6, think of it as -302.0 + 7.6. Line up the decimal points: you're adding 7.6 to -302.0, which gives you -294.4.
Start at -302 on the number line. Since you're adding 7.6 (positive), move 7.6 units to the right. You'll land at -294.4, which is closer to zero than where you started.
Apply the same rule: -7.6 + 302 = 294.4 (positive this time!). The order matters for the final sign - the larger absolute value determines whether your answer is positive or negative.
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