Addition
Brenda has a bank account balance of -$19.78, then deposits $40 into her account. What is Brenda’s new bank account balance?
20.22
7/10 - 4/5
-1/10
2/7 x 3/5
6/35
Find the quotient of -1.5 ÷ -0.25 .
6
A freezer in a lab is set so that the temperature changes at a rate of -1.6 degrees C every hour. What is the change in the temperature after 4 1/4 h? *
-6 16/20
-42.9 + (-15.4) ?
-58.3 m.
2/5 - (-4/9)
38/45
-3/2 x 2/3
-1/1 or -1
-12.11 ÷ 7?
-1.73
A mole is in a hole that is 7 1/4 in. below the surface of the ground. It then digs 7 1/2 in. deeper. What is the mole's new elevation relative to the surface of the ground? *
-14 3/4 in.
-1/4 + (-3/5)
-17/20
4/7 - 2/5
6/35
5/9 x (-3/4)
-5/12
Find the quotient of -2/3 ÷ 2/9 . Write your answer in simplest form.
-3
Emilio flies a kite 16 1/2 ft. above the ground. He increases its elevation by 6 3/4 ft. by letting out some string. Then he reels in the string and changes its elevation by -14.8 ft. After Jose reels in the string, what is the kite's elevation relative to the ground? *
8.45 ft.
3/13 + (-5/13)
-2/13
7 2/3 - 9 5/8
-1 23/24
What is the product of 0.18 and -0.3
-0.54
Find the quotient of -3/8 ÷ (-1/2)
6/8
On a winter day, the temperature changes by -12 degress F in 2 1/4 h. What rational number represents the average change in temperature each hour?
-5 3/9
-1 3/10 + (-3.8)
-5 1/10
-5/8 - (-6/7)
13/56
-7/6 x 5
-35/6 or -5 5/6
-79.2 ÷ (-16.5) ?
4.8
Sofia is playing a board game. At the end of the first round, she has - 3.3 points. During the second round, she gains 5.5 points. During the third round, she loses 7.7 points. What is Elisa's point value after the third round? *
-5.5 points