Be Careful! To ADD a positive integer start at the first number and move to the right on the number line. Positive Direction . To ADD a negative integer start at the first number and move to the left on the number line. Negative Direction Watch and See - Directions: Write an equation that represents the model. Answer: +4 -4 + -4 3 2 1 0 1 23 4Directions: Write an equation that represents the model. Answer: -4 -2 012345\f\fNumber Line Practice Simplify the following expression. -2+ (-7) + -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10Simplify the following expression. -5+ 8Simplify the following expression. -7 + (-15)Exit Ticket #1. 3+5 #2. -5+ (-4) #3. -2+9 #4. 6 +(-8)