Summer Learning Real Numbers Flashcard

Front

What are real numbers?

Back

Real numbers include all the numbers on the number line, including rational numbers (like integers and fractions) and irrational numbers (like √2 and π).

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction of two integers, where the denominator is not zero.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a simple fraction; their decimal representation goes on forever without repeating.

Front

How do you convert scientific notation to standard notation?

Back

To convert from scientific notation to standard notation, move the decimal point to the right for positive exponents and to the left for negative exponents.

Front

What is the standard notation for 6.25 × 10⁻⁷?

Back

0.000000625.

Front

How do you order numbers from greatest to least?

Back

Compare the values of the numbers and arrange them starting from the highest value to the lowest.

Front

What is 1.4 × 10^6 in standard notation?

Back

1,400,000.

Front

What is the relationship between rational and irrational numbers?

Back

Both rational numbers and irrational numbers are subsets of real numbers.

Front

What is a percentage?

Back

A percentage is a fraction expressed as a part of 100.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100.