Write a subtraction sentence using integers. Then write the equivalent addition sentence and explain how to find the sum.

The difference of five and negative 7.

1. Which becomes 5 - (-1) = 6. Such that 5 + 1 = 6. The total number of fruits available.

Three hundred apples minus thirty oranges.

1. 300 - 30 = 270 fruits

The room temperature of thirty degrees Celsius has risen to fourty-five degrees Celsius. What is the difference of the final and initial temperatures?

1. 45 - 30 = 15

When the ball rose with an acceleration of 2 m/s2 what is the difference between the ball’s acceleration and the gravitational force that acted on it?

1. - 10 - 2 = - 12