Positive numbers are numbers that are greater than 0. These numbers can be written with or without a positive sign. Negative numbers are less than 0 and are always written with a negative sign.
78
Practice makes perfect
Positive numbers are numbers that are greater than 0. These numbers can be written with or without a positive sign. Negative numbers are less than 0 and are always written with a negative sign.
Integers are the set of whole numbers and their opposites. Let’s use this information to write a positive or negative integer that represents the given situation.
A baseball is thrown at a speed of 78 miles per hour.
The words thrown at a speed of tell us that the speed of a baseball is above certain level. This means that the speed of the baseball is increasing. We use positive numbers to express the enlargement of a number.
78
