Solve the following exercise:
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Solve the following exercise:
Note that we are multiplying two positive numbers, so the result will necessarily be positive:
We get:
Convert \( \frac{7}{2} \)into its reciprocal form:
When you multiply two positive numbers, you're essentially adding one positive number to itself multiple times. Since you're adding positive amounts, the result must be positive!
No! When a number is positive, we usually don't write the + sign. So (+9) × (+4) = +36 can be written simply as 36.
It's exactly the same! The parentheses with + signs are just showing you explicitly that both numbers are positive.
Then you'd use a different sign rule! Positive × Negative = Negative. For example: (+9) × (-4) = -36. The signs must be the same for a positive result.
Absolutely! means add +9 four times: 9 + 9 + 9 + 9 = 36. This confirms our multiplication is correct!
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