Envision Math 2nd Grade Textbook Answer Key Topic 1 Reteaching
Reteaching
Set A
You can use a subtraction sentence to show a story.
Sam draws 6 pictures. Laura draws 2 pictures. How many more pictures does Sam draw than Laura?
Sam draws 4 more pictures.
Write a subtraction sentence for the story.
Question 1.
Robin has 8 crayons. Andrew has 3 crayons. How many more crayons does Robin have than Andrew?
__ – __ = ___
Answer:
Question 2.
Ted reads 9 pages. Pete reads 6 pages. How many more pages does
__ – __ = __
Answer:
Set B
You can write addition and subtraction sentences to show the whole and the parts.
Write an addition sentence for the model. Then write two subtraction sentences for the model.
Question 3.
__ + __ = ___
__ – __ = ___
__ – __ = ___
Answer:
Set C
You can join the parts to find the sum. Kate sees 5 flowers. Then she sees 3 more. How many flowers does Kate see in all?
Draw a picture to find the sum. Then write an addition sentence.
Question 4.
There are 2 cats in the yard. 4 more cats join them. How many cats are there in all?
Answer:
Set D
You can separate a part from the whole to find the missing part. Louis has 7 baseball caps. He gives 2 away. How many caps does Louis have now?
Draw a picture to find the difference. Write a subtraction sentence.
Question 5.
There are 5 balls on the beach. 4 balls bounce away. How many balls are on the beach now?
Answer: