Which of these is NOT a rational number?

• 0

• 12.25

• 4/5

• -8

• √5

When adding and subtracting rational numbers, if the signs are the same, ​ (a)   the numbers, and keep the ​ (b)   sign.

• add
• subtract
• divide
• same
• larger number's
• positive

When adding and subtracting rational numbers, if the signs are different, ​ (a)   the numbers, and keep the ​ (b)   sign.

• subtract
• add
• change
• larger number's
• same
• positive

When adding and subtracting rational numbers, a number minus a negative becomes ​ (a)   .

• positive
• negative

Solve.

3 − ( −9 )

Mathematical Equivalence

ON

Solve.

7 + 5.4

Mathematical Equivalence

ON

Solve.

−13 + ( −20 )

Mathematical Equivalence

ON

• 2

• -1

• 2

• 1