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To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: We begin with the calculation .
Step 2: Perform the multiplication:
Let's examine a more structured multiplication method:
Multiply by (last digit of the second 11), we get 11.
Multiply by (tens place of the second 11), we get 110.
If we align correctly and add the partial products:
11
+ 110
------------
121
Step 3: The correct multiplication yields the final result as . Upon reviewing the provided choices, the correct answer is choice 4: .
Therefore, the solution to the problem is .
121
\( 11^2= \)
11² means 11 × 11 = 121, while 11 × 2 = 22. The small 2 above (exponent) tells you how many times to multiply 11 by itself, not what to multiply 11 by!
Yes! For numbers ending in 1, the square always ends in 1. For example: , , . This can help you check your answer!
Let's check: gives us 1 × 1 = 1 in the ones place, plus 1 × 1 = 1 carried over twice, making 121. If you got 111, you might have added instead of multiplying!
The ² is called an exponent and means "squared" or "to the second power." It tells you to multiply the number by itself exactly once: .
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