Roots
What is the square root of 64?
8
What are the two main types of real numbers?
rational and irrational
Estimate 2.9 + 3.6 to the nearest whole number.
About 7
Which is greater 1/2 or 0.3?
1/2
If x2 =49 what are the possible values of x?
+-7
Which of the following is a rational number: sqrt of 2, 3.5 or pi?
3.5
Estimate the product of 4.3 and 1.7
About 8
Order the following from least to greatest: -1, -sqrt7, 1/2, -0.5
-sqrt7, -1, -0.5, 1/2
Calculate the cube root of 27 .
3
What is the difference between a rational and an irrational number?
A rational number is a number that can be expressed as a fraction where both the numerator and denominator are integers (whole numbers), while an irrational number cannot be written as such a fraction
Round 5.78 to the nearest tenth
5.8
Explain how you can determine which is larger: sqrt3 or 1.5.
Round the sqrt3 to the tenths place which is 1.7 and when compared to 1.5 you can see that it is larger by 0.2
What is the value of sqrt(16) + sqrt(9)?
7
Give an example of a real number that is not a rational number.
Answers may vary
Estimate 7.2/3.4 to the nearest whole numbers
About 2
If a=-0.75 and b=0.8, which is larger and by how much?
B by 1.55
Simplify sqrt50
7.07
Explain why -5 is a real number.
It is a subset of rational numbers
If you have 3.4 + 2.9 + 4.5 estimate the total.
About 11
Compare and order the following numbers: pi, 3.14, 22/7
Which is the largest?
Which is the smallest?
pi is the largest
3.14 is the smallest