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Subtraction Story Problems Within 20

Grades: 2nd Grade, 1st Grade

Subjects: Math

Standards: Make sense of problems and persevere in solving them. (Math Practice 1:), Flexibly and efficiently add and subtract within 20 using multiple mental strategies which may include counting on; making ten; decomposing a number leading to a ten; using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13). (M.2.OA.B.2.)

Student Instructions

1. Read the directions on page 1. 2. On pages 2-5, read the story problems. Use the highlighter tool to highlight important information that will help you to solve the problem. 3. Type the subtraction equation from the problem into the given box. 4. Solve the problem using paper and pencil. Be sure to show your work! 5. Use the camera tool to take a picture of your work and how you got your answer. 6. Type your final answer into the given box and be sure to include units. 7. Check over your work and answers on all pages. When finished, click the green check-mark to submit.

Teacher Notes (not visible to students)

Your students will need to be able to subtract within 20. Answer key: Page 2: 8 books Page 3: 7 French fries Page 4: 11 gallons of milk Page 5: 4 scoops of ice cream

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Subtraction Story Problems Within 20

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