Descriptive Modeling
A way to mathematically describe real-world situations and the factors that cause them.
What is descriptive modeling?
The number of digits in a value or measurement that contribute to the degree of accuracy of the number.
What are significant figures?
The normal way we write numbers, with the largest place value first and the smaller ones to follow
What is standard notation?
The digit in the hundreds place of the number 541,902.
What is 9?
0.25 as a fraction.
What is 1/4?
Examples: Volume, Distance, GPA
What is a metric?
A type of zero that is between two non-zero digits.
What are sandwiched zeros?
A way to write numbers as multiples of powers of ten.
What is scientific notation?
The digit in the thousandths place of the number 0.0003.
What is 0?
2/100 as a percent.
What is 2%?
How close a measurement is to the actual (true) value.
What is accuracy?
A type of zero that comes after the last non-zero digit.
What are trailing zeros?
1,472 in scientific notation.
What is 1.472 x 10^3?
The digit in the ten thousands place of 1,000,000.
What is 0?
The LCM of 12 and 72.
What is 72?
How close measured values are to one another.
What is precision?
What are leading zeros?
2.040 x 10^3 in standard notation.
What is 2,040?
The digit in the tenths place of the product of 0.5 and 0.3.
What is 1?
The GCF of 50 and 125.
What is 20?
Solve the following word problem:
Jill sold half of her comic books and then bought sixteen more. She now has 36. With how many did she begin?
What is 40 comic books?
The number of significant digits in the sum of 0.013, 2.5, and 0.01.
What is 2 significant figures?
The number of significant figures in 1.2 x 10^-5.
What is 2?
The ones digit in the product 1.2 and 5.
What is 6?
The prime factorization of 108.
What is 2*2*3*3*3?