Math 7th: 7.2A 7.3A 7.3B Pre Assessment

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction where both the numerator and the denominator are integers, and the denominator is not zero. Examples include 1/2, -3, and 4.75.

Front

What is the relationship between whole numbers and integers?

Back

All whole numbers are integers. Whole numbers include 0 and all positive counting numbers (1, 2, 3, ...), while integers include all whole numbers and their negative counterparts (-1, -2, -3, ...).

Front

Identify the set of numbers: 3.1, -1/2, 1/3, 21.6, -5.8.

Back

These numbers are all rational numbers.

Front

What is the formula to find the number of students who did not pass if 4/5 of the class passed?

Back

If 4/5 of the class passed, then 1/5 of the class did not pass. To find the number of students who did not pass, multiply the total number of students by 1/5.

Front

Calculate the number of students who did not score above 75 if there are 30 students and 4/5 passed.

Back

6 students did not score above 75.

Front

What is the hourly wage of Marcos as a lifeguard?

Back

Marcos makes $11.20 an hour.

Front

How many hours does Marcos work in total over the summer?

Back

Marcos works 30 hours a week for 10 weeks, totaling 300 hours.

Front

Calculate Marcos's total earnings over the summer.

Back

Marcos earns $3,360 over the summer.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

What are whole numbers?

Back

Whole numbers are non-negative numbers that include zero and all positive counting numbers (0, 1, 2, 3, ...).