Perfect Square
Square Roots
Power of 10
Scientific Notation
Standard Form
100
If the square root is 5, what is the perfect square?
25
100
Which value is equivalent to √42 ?
4
100
A pattern with the powers of 10 is shown below.
103 = 1000
102 = 100
101 = 10
100 = 1
10-1 = 0.1
10-2 = ?
Each time the exponent decreases by 1, the value of the power is _______( one-tenth of, one-half of ) the previous value, so 10-2 has a value of _______.
1. one-tenth of
2. 0.01
100
Which two statements show a number and its equivalent written in scientific notation?
A. 2,800 = 2.8 x 103
B. 1.203 x 105 = 0.01203
C. 42,000 = 4.2 x 104
D. 9.5 x 10-6 = 95,000,000
A and C
100
Convert 6.4 x 10-3 to standard form.
0.0064
200
Select all the perfect squares below.
20 361 120
16 196 289
81 160 50
16, 81, 361, 196, 289
200
If the perfect square is 196, what is the square root?
14
200
What is the equivalent decimal form for 10-5 ?
0.00001
200
What is 72,000 written in scientific notation?
7.2 x 104
200
Convert 4.8 x 106 to standard form.
4,800,000
300
If the square root is 11, what is the perfect square?
121
300
A square playground has an area of 64 square meters. What is the length of each side of the playground?
8 meters
300
What is the value of x if 10x = 0.001?
A. -2
B. -3
C. -4
B. -3
300
What is 0.00045 written in scientific notation?
4.5 x 10-4
300
Convert 1.25 x 10-8 to standard form.
0.0000000125
400
If the square root of the area of the school's new square-shaped cafeteria floor is 17 feet.
Then the area is ________ square feet.
289
400
If the perfect square is 225, what is the square root?
15
400
TRUE or FALSE:
1. 10-6 = 1/1,000,000
2. 10-4 = -0.0001
1. TRUE
2. FALSE
400
What is 91,200,000,000 written in scientific notation?
9.12 x 1010
400
Convert 3.5 x 104 to standard form.
35,000
500
Make a true statement by filling in values that represent the model.
25 = 5
500
Markey is given a perfect square number. He wants to determine the square root of the given number. Which is the BEST method for Markey to use to determine the square root?
A. Multiply the given number by 2.
B. Determine which number can be multiplied by 2 to produce the given number.
C. Determine which number can be multiplied by itself to produce the given number.
C. Determine which number can be multiplied by itself to produce the given number.
500
Write the fraction and decimal form of 10-7 ?
Fraction form = 1/10,000,000
Decimal form = 0.0000001
500
The population of a country is approximately 331,000,000 people.
Write the population in scientific notation.
3.31 x 108
500
A large city has a population of approximately 1.35 × 106 people.
What is the population in standard form?
1,350,000 people