Question

in each of the following problems, write an addition or subtraction expression and then solve the problem.
a. the hottest temperature ever recorded in a certain state was 125°f. it was recorded on july 6, 1936. less than five months earlier, on february 15, 1936, the lowest temperature in the states history was recorded - 61°f. what is the difference between hottest and lowest temperatures?
b. the temperature was 6°f and then it rose by 16°f. what is the new temperature?
c. the temperature went down from 46°f to 0°f. how many degrees did the temperature fall?
d. brookes house had a temperature of 54°f. she put the heat on and the temperature rose by 10°f. as she was still cold, brooke lit a fire, which increased the temperature by 11°f. what was the temperature in the house then?
a. the expression is (square) (do not simplify. do not include the degree symbol in your answer.)

Explanation:

Step1: Find difference for part a

125 - (- 61)

Step2: Solve part a

125+61 = 186

Step3: For part b, find new temperature

6 + 16 = 22

Step4: For part c, new temperature

46 - 9 = 37

Step5: For part d, initial temp 54, first increase

54+10 = 64

Step6: Second increase

64 + 11 = 75

Answer:

a. 125 - (-61); 186
b. 6 + 16; 22
c. 46 - 9; 37
d. 54+10 + 11; 75