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)
What is the variance of the dataset {7, 9, 12, 17, 20}?
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Question: How many different 3-digit numbers can be formed using the digits 2, 4, 6, and 8 without repetition?
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What is the range of the trigonometric function f(x) = 2cos(x) + sin(x) for x∈[-π/2, π/2]?