U2 Review

Integers

100

What is the sum of 28 and -17?

11

200

What is the difference of -26 and 22?

-48

300

DOUBLE!!!

What is the sum of -38 and -14?

-52

400

Solve.

35 - 52 + (-26)=

-43

500

Solve.

(-43) + (-72) - (-21)=

-93

Rational Numbers

100

Solve.

1  1/4 + 2  1/2 =

3  3/4

200

Solve. 

(-3/4) + (-1  1/4) =

-8/4 = -2

300

Solve.

3  2/5 + 4  3/10 =

7  7/10

400

Solve. 

(-2  1/3) - (-4  3/4)

2  5/12

500

DOUBLE!!!

(-2  4/8) + 3  1/2 - (-1/3) =

1  1/3

Word Problems

100

DOUBLE!!!

Payton says the sum of two numbers can never be zero. Prove why she is incorrect. 

sample answer: +7 and -7 makes 0

200

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

300

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

400

The sum of -14.3 and a number is positive. Identify a possible value for that number. 

14.4 or greater

500

The difference of -18.3 and a number is negative. Identify a possible value for that number.

any number greater than -18.3. 

Multi-Step

100

(-2.5) + 3.2 + (-7.3) =

-6.6

200

35.7 - (-46) - 12.5 =

69.2

300

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

400

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

500

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