Introduction to Negative Numbers and Integers

This video tutorial introduces the concept of number lines, explaining how positive and negative numbers are represented and located on them. It covers the correct notation for negative numbers, emphasizing the placement of the negative sign. The tutorial also discusses the use of parentheses in representing negative numbers and introduces the concept of integers, which include positive numbers, negative numbers, and zero.

What is a common mistake when writing negative numbers?

• Placing the negative sign after the number

• Writing the number in parentheses

• Using a plus sign instead of a minus

• Using a decimal point

How do you locate positive 5 on a number line?

• Start at 5 and move 5 units to the left

• Start at 5 and move 5 units to the right

• Start at 0 and move 5 units to the right

• Start at 0 and move 5 units to the left

If you want to find -9 on a number line, what should you do?

• Start at -9 and move 9 units to the right

• Start at 0 and move 9 units to the left

• Start at -9 and move 9 units to the left

• Start at 0 and move 9 units to the right

How are negative numbers sometimes represented in textbooks?

• With a slash

• With a plus sign

• With a decimal point

• With parentheses around them

What set of numbers includes positive numbers, negative numbers, and zero?

• Integers

• Whole numbers

• Decimals

• Fractions