Integers
What is -6 + 5?
(-6) + (5) = -1
Is the following number a rational number?
4/2
Yes: 4/2 = 2
Is the following number an irrational number?
.345345345345.....
No
What is the square root of 4?
2
Is 5 a perfect square?
No
What is the sum of the following integers: -3 and -4?
(-3) + (-4) = -7
Which of the following numbers is a rational number?
a) .75
b) 3.14......
c) 1.23549.....
a) .75
Which of the following numbers is a irrational number?
a) 3.14......
b) 6/3
c) .34343434...
a) 3.14.....
What is the square root of 25?
5
Is 36 a perfect square?
Yes
What is the difference between -5 and -6?
(-5) - (-6) = (-5) + (6) = 1
Choose all the rational numbers shown below.
a) 10/5
b) .4567890.......
c) Square root of 16
a) 10/5 = 2
c) Square root of 16 = 4
Choose all the rational numbers shown below.
a) 1.397302.........
b) .4567890.......
c) Square root of 16
a) 1.397302.....
b) .4567890......
What is the square root of 100?
10
What is the square root of 4 plus the square root of 16?
Square root of 4 is 2.
Square root of 16 is 8.
2 + 8 = 10
True or false?
Integers only include positive numbers on the number line.
False: Integers include zero and all positive and negative whole numbers on the number line.
True or false?
A rational number is a number that terminates (ends) or repeats.
True
True or false?
An irrational number is a number that terminates (ends) and repeats.
True or false?
A square root is the number you multiply by itself (with its twin) to get the number under the radical sign.
True
True or false?
A perfect square is a number produced when a number is squared.
True
What is -7 times -2?
14
Is the value (answer) of the sum of 3/4 and .25 a rational number?
Yes: 3/4 = .75
.75 + .25 = 1
Is the value (answer) of the sum of 3/4 and .25 an irrational number?
No: 3/4 = .75
.75 + .25 = 1 (a rational number)
What is the square root of 25 times the square root of 81?
Square root of 25 is 5.
Square root of 81 is 9.
5 x 9 = 45
What are the perfect squares between 1 and 25?
4, 9, 16