Adding Rational Numbers

Fill in the blank for the following rule: If the rational numbers have same signs, ______________ the absolute values and keep the common sign.

• add

• subtract

• multiply

• divide

Fill in the blank for the following rule: If the rational numbers have different signs, ____________________ the absolute values and keep the sign of the number with the biggest absolute value.

• add

• subtract

• multiply

• divide

What is the value of -12.45 + 206.3?

• -218.75

• -193.85

• 218.75

• 193.85

What is the value of the following expression?

• -12 and 19/21

• -12 and 1/2

• -2 and 3/4

• -2 and 5/21

What is the value of the following expression?

• -72

• -8 and 2/3

• 40 and 1/3

• 72

-2.61 + (-6.88)

• 9.49
• -9.49
• 4.27
• -4.27

-2.61 + (-6.88)

• 9.49
• -9.49
• 4.27
• -4.27

9 + -6.73

• 2.27
• -2.27
• 15.73
• -15.73