Math Integers and Rational Numbers

8 + (-2) = ?

(a)  

Bob lost 5 bonus points on page one of his math test and he gained 9 points bonus on page two of his math test. Which equation best describes Bob progress on his math test?

• 5 + 9 = 14

• -5 + 9 = 4

• -5 + (-9) = -14

• 5 + (-9) = -4

-10 + 10 =

(a)  

If the temperature in Chicago is -5 degrees and the temperature in Moscow is 8 degrees colder. What is the temperature in Moscow?

• -3 degrees

• -13 degrees

• 3 degrees

• 13 degrees

What is the value of | 7 |?

• 7

• – | –7 |

• 14

• –7

What's a way to define absolute value?

• The value of a number

• The opposite of a number

• The distance of a number from zero

• The multiplicative inverse of a number

-23.4 - 3.4= 

• -20

• 26.8

• -26.8

• 20

7.19 + (-5.34)

• 12.53

• -1.85

• -12.53

• 1.85

Rewrite the problem as addition.

-5.66 - (-4.1)

• 5.66 + (-4.1)

• -5.66 + 4.1

• -5.66 + (-4.1)

• -5.66 - 4.1

6.59 + (−7.8) − (−2.41)

• 16.8

• 11.98

• -3.62

• 1.2