Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.
Use rational approximations of irrational numbers to compare the size of irrational numbers, locate them approximately on a number line diagram, and estimate the value of expressions (e.g., π2 ). For example, by truncating the decimal expansion of √2, show that √2 is between 1 and 2, then between 1.4 and 1.5, and explain how to continue on to get better approximations.
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Q 1/10
Score 0
Which number is a perfect square?
120
Q 2/10
Score 0
If the square of a number is 225, what is the number?
120
10 questions
Q.
Which number is a perfect square?
1
120 sec
8.NS.A.1
Q.
If the square of a number is 225, what is the number?
2
120 sec
8.NS.A.1
Q.
Which of the following integers is not a perfect square?
3
120 sec
8.NS.A.1
Q.
Which of the following is an example of an irrational number?
4
120 sec
8.NS.A.2
Q.
5
120 sec
8.NS.A.2
Q.
6
120 sec
8.NS.A.1
Q.
Which of the following represents a natural number?
