Operations With Rational Numbers

Jillian owes the bank $66.25. She deposits $60.00 into her account. What is the current balance of Jillian's account?

• 6.25

• -6.25

• 126.25

• -126.25

What is the value of the expression:

5.4 − (−8.35)?

• -13.75

• -2.95

• 2.95

• 13.75

Which expression represents the distance between T and U on the number line?

• |−2 + −5|

• |−2 − (−5)|

• −5 − (−2)

• |−2| + |−5|

Which of these expressions has the least value?

• −3 + −6

• −3 × −6

• −3 ÷ −6

• −3 − −6

Solve

• 6

• -6

Which difference is represented by this number line?

• -3 - (-2)

• -3 - 2

• -5 + (-3)

• -5 + (-2)

Ions are atoms or groups of atoms with positive or negative electrical charges. The charges of two ions are shown in the table.

Two calcium ions and two chloride ions are combined.

What is the expression and what is the total charge?

• 2(2) + 2(-1) = -2

• 2(2) + 2(-1) = 2

• 2 + -1 = 3

• (2 + 2) + (2 + -1) = -3

What is the decimal representation of the given fraction and is it terminating or repeating.

• 2.6 Terminating

• 2.375 Terminating

• Cannot be converted to a decimal. 

• 5.5

• 5.75

• 5.375