*7th Grade Rational Number Review*

Rational Number Addition

100

(2) + (-2)

What is 0?

200

(2) + (3)

What is 5?

300

15 + (-16)

What is -1?

400

(-20) + (-20)

What is (-40)?

500

Fill in the rules: A positive number plus a positive number = _____________ A negative number plus a negative number = ____________ A positive number minus a negative number = ___________

What is a positive number, a negative number, and a positive number?

Rational Number Subtraction

100

(-15) - (22)

What is (-37)?

200

(64) - (-14)

What is 78?

300

(1/4) - (-3/8)

What is (5/8)?

400

At 10:00 pm, the temperature was 5 degrees. Two hours later, at midnight, the temperature was -2 degrees. How many degrees did the temperature change?

What is 7 degrees?

500

(-2) - (-2) - 2

What is (-2)?

Rational Number Multiplication

100

(-2)(4)

What is (-8)?

200

(-5)(-3)

What is 15?

300

-9 x 3=

What is -27?

400

(-1/2)(-5)

What is (5/2) or 2.5?

500

A positive number times a positive number = _________. A negative number times a negative number =___________. A positive number time a negative number =____________.

positive, positive, negative