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Course: Operations and Algebraic Thinking 218-221 > Unit 2
Lesson 1: Meaning of exponentsSquaring numbers
Learn how to square basic numbers and make a connection between squaring and the area of a square.
Let's start by taking a look at an example evaluating squared:
Here's a question to make sure you got that:
Connection to a square
Finding (read as "three squared") is the same as finding the area of a square with side length :
Practice set:
Challenge set:
Want to join the conversation?
- what is 5 to the third power(105 votes)
- well, to the power means the number, times itself, however many times the power is. for example,
2 to the fourth power would be 16. because 2 times two is four, that times two is eight, eight times two is sixteen. 2*2*2*2. so five to the three would be 5*5*5. I bet you can find the answer from there.(159 votes)
- Can We Negative Square Num.? If yes, How?(57 votes)
- Yes, we can use in imaginary numbers, where (-1)²=i , I think you're gonna see it at the pre-cauculus subject.(53 votes)
- Good Luck guys I am hope you do well(38 votes)
- thanks but I'm just here to answer peoples questions(19 votes)
- what if 6x6x6x9=?(24 votes)
- 6 x 6 x 6 x 9 = 6^3 x 9 = 1944(29 votes)
- What is imaginary numbers?(20 votes)
- Good question! In the real number system, it is not possible to find the square root of a negative number, since no real number times itself is negative. This is because 0 times itself is 0, a negative number times itself is positive, and a positive number times itself is positive.
To get around this problem, mathematicians invented the imaginary unit i, defined as the square root of -1. This produces an extended number system called the complex numbers, defined as numbers in the form a+bi where a and b are real numbers. For example, 8, 3 - 2i, and 5i are complex numbers. Also, 5i is an example of what is called a pure imaginary number, because 5i is just a real number times i.
Have a blessed, wonderful day!(34 votes)
- What are some tips to be a great 6th grader since it is the first time in middle school?(16 votes)
- I guess socially, stick to your own friend groups and stay out of trouble, but academically, ask as many questions as you can so you can get a firm understanding of what you're learning.(2 votes)
- It's the same as finding the square root of something.(12 votes)
- Yes, just the opposite process!
You can say that "squaring" and "square rooting" are inverse operations. (when n >= 0 though)(10 votes)
- what is that bar on top of a number!?(9 votes)
- It means it's repeating over and over, it comes in handy when you have a 'repeating decimal'. You'll probably learn about repeating decimals when you start to learn about shifting fractions into decimals. Hope that helps <3(11 votes)
- Easy..........
Easy..........
Easy..........(11 votes)- What do you mean by this? Do u need help?(7 votes)
- what are some tips on better prepare my self for 8th grade?(5 votes)
- When i went to 8th grade the summer before i changed up my style. have fun.
and pack a great lunch for the first day(1 vote)