Integers
What is the sum of 28 and -17?
11
Solve.
1 1/4 + 2 1/2 =
3 3/4
DOUBLE!!!
Payton says the sum of two numbers can never be zero. Prove why she is incorrect.
sample answer: +7 and -7 makes 0
(-2.5) + 3.2 + (-7.3) =
-6.6
What is the difference of -26 and 22?
-48
Solve.
(-3/4) + (-1 1/4) =
-8/4 = -2
Alex was playing a video game. On the first round he gained 15 points, during the second round, he lost 9 points, and on the last round he gained 25 points.
Write an expression and solve.
15 + (-9) + 25 = 31 points
35.7 - (-46) - 12.5 =
69.2
DOUBLE!!!
What is the sum of -38 and -14?
-52
Solve.
3 2/5 + 4 3/10 =
7 7/10
DOUBLE!!!
Tim is digging a hole. The bottom of the hole is -2.8 ft from the surface. His friend John is on a deck that is 12.3 ft above the surface of the ground. How many feet apart is John from the bottom of the hole?
15.1 feet
A turtle is 4 1/3 m below the surface of the ocean. It swims up 1 1/2 m, then down 5 1/2 m. What is the turtle's new position?
-8 1/3 m
Solve.
35 - 52 + (-26)=
-43
Solve.
(-2 1/3) - (-4 3/4)
2 5/12
The sum of -14.3 and a number is positive. Identify a possible value for that number.
14.4 or greater
A sea horse is 12 1/4 m below the surface of the ocean. It swims down 1 1/4 m, then down 3 1/2 m. What is the sea horse's new position?
-17 m
Solve.
(-43) + (-72) - (-21)=
-93
(-2 4/8) + 3 1/2 - (-1/3) =
1 1/3
DOUBLE!!!
A dolphin is 12 2/5 m below the surface of the ocean. It swims down 3 1/5 m, then up 9 4/5 m. What is the dolphin's new position?
-5 4/5 m