Adding
13 + (-19)
-6
-5
-12(-3)
36
56/-8
-7
Tyler burns 650 Calories when he runs for 1 hour. Suppose he runs 5 hours in one week. Write a multiplication expression, solve, and explain its meaning.
-650(5) = -3,250
Tyler burns 3,250 Calories in one week.
15 + 9 + (-9)
15
15 - (-8)
23
(-5)2
25
-15/-3
5
Danielle has a balance of -$75 in her account. The bank charged her a fee of $15 for having a negative balance. What is her new balance? Write an addition expression, solve, and explain its meaning.
-75 + (-15) = -90
Danielle's new balance is -$90.
-10 + (-15)
-25
-7 - 9
-16
-4(-2)(-3)
-24
-21/7
-3
The temperature is -3 degrees. An hour later, it drops 6 degrees and 2 hours later, it rises 4 degrees. Write an addition expression to describe this situation. Then find the sum and explain its meaning.
-3 + (-6) + 4 = -5
The temperature drops 5 degrees in 3 hours.
0
g - 7 let g = -4
-11
(-4)3
-64
r/s let r =12, s = -4
12/-4 = -3
The sea surface temperatures range from -2 degrees Celsius to 31 degrees Celsius. Write an expression and find difference between the maximum and minimum temperatures.
31 - (-2) = 33 degrees Celsius.
-8 + 7 + (-3)
-4
f - g let f = -6 let g = 7
-6 - 7 = -13
-cd2 let c = 3, d=9
-3(9)2 = -3(81)
= -243
100/-10
-10
A hang glider flew to an altitude of 10,000 feet. Fifteen minutes later, its altitude was 7,000 feet. What was the average change in elevation per minute?
7,000-10,000 divided by 15 =
-200ft/min