Multiplication is a way of adding the same number multiple times. When you multiply 3×3, you're adding the number 3 three times:
3×3=3+3+3=9
So, 3×3=9 means that you're taking three groups of three, which equals 9 in total.
Frequently asked questions (FAQs)
Math question: Find the 5th derivative of f(x) = √(x² + 1) at x = 2.
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What is the standard deviation of the data set: 10, 15, 20, 25, 30?