Adding Rational Numbers

Front

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

Back

add

Front

If the rational numbers have different signs, ____________________ the absolute values and keep the sign of the number with the biggest absolute value.

Back

subtract

Front

Which situation could be represented by the equation: - 30 + 30 = 0 ?

Back

Charmeal loaned $30 to her brother. She then paid her back $30 the next day.

Front

-456 + 905

Back

449

Front

(-115) + 23

Back

-92

Front

(-612) + (-221)

Back

-833

Front

-12.45 + 206.3

Back

193.85

Front

(-2.12) + (-6.84) + (-4.19)

Back

-13.15

Front

What is the value of the following expression?

Back

-12 and 19/21

Front

What is the value of the following expression?

Back

-8 and 2/3