Which expression has the same value as the one below?





Which sum does the model below represent?





Indira is using a number line to add . She begins by showing –1 on the number line, as shown below.What is the sum of ?

A meteorologist used the expression below to describe how the temperature changed. Which statement could describe how the temperature changed?

Sebastian was in a hotel lobby and took the elevator up 7 floors to his room. Then he took the elevator down 9 floors to the parking garage. He described his movement with the expression below.What is Sebastian’s error?


Which addition does the model below represent?





The temperature at 9 a.m. is 2 degrees. The temperature rises 3 more degrees by noon. Which expression describes the temperature at noon?




What is the value of the expression?



Sheila wants to test the reasonableness of her answer to the expression below by using compatible numbers.Which equation would help Sheila do this?

Rita is adding . She rewrites the expression as . What is Rita’s error?

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