Introduce Integers

Evaluate:
−30÷2

• −15

• 15

• 10

• −10

Evaluate:
−19+14

• −5

• 5

• −33

• 33

5 - (-12)

• -7

• 7

• 17

• -17

-20 x 0

• 20

• -20

• 0

• -19

Integers are whole numbers and their ________.

• Inverses

• Reciprocals

• Square roots

• Opposites

True or False: If a number is classified as an integer, it must also be a whole number.

• True

• False

True or False: Every natural number (aka counting number) is an integer.

• True

• False

Classify the following numbers into their correct subset:

1) -2

2) ¾

3) √2/2

• 1) Integer

  2) Irrational

  3) Rational

• 1) Whole

  2) Rational

  3) Irrational

• 1) Natural

  2) Irrational

  3) Whole

• 1) Integer

  2) Rational

  3) Irrational

Which of the following numbers is NOT an integer?

• - √36

• 0

• 8/4

• -0.15

To which of the following sets of numbers does √196 belong?

• I only

• I, II, and III only

• III only

• IV only