Adding and Subtracting Rational Numbers

Front

When adding rational numbers with the same sign, you must:

Back

Add together and keep the sign.

Front

Following the integer rules, would you add or subtract the fractions?

Back

Add, the answer would be negative.

Front

What is -6.5 + (-0.5)?

Back

-7

Front

The temperature was 3°C on Monday and was 7.5 degrees lower the next day. What was the temperature on Tuesday?

Back

-4.5°C

Front

What is 34.5 + (-7)?

Back

27.5

Front

Define rational numbers.

Back

Rational numbers are numbers that can be expressed as a fraction of two integers, where the denominator is not zero.

Front

What is the rule for adding two positive rational numbers?

Back

Add the absolute values and keep the positive sign.

Front

What is the rule for adding two negative rational numbers?

Back

Add the absolute values and keep the negative sign.

Front

What happens when you add a positive rational number and a negative rational number?

Back

Subtract the smaller absolute value from the larger absolute value and keep the sign of the number with the larger absolute value.

Front

What is the result of -3 + 5?

Back

2