On a cold winter day, the temperature was 1 C below zero. At night, the temperature dropped 4 C. What was the final temperature?
1. what integer represents the daytime temperature?
2. What integer represents the drop in temperature?
3. Write a subtraction expression to represent the final temperature, then write an equivalent addition expression.
4 on the number line below, the arrow represents the starting temperature from zero. Draw an arrow to represent the drop in temperature. At which integer does the arrow end ?
