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Mixed Addition and Subtraction Word Problems

Decide to add or subtract. All answers are within 20.
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Mixed Addition and Subtraction Word Problems (two-digit)6 WS
A farm has 56 apples in a basket. They sell 19 apples. How many apples remain?

Practice Questions

  1. Sofia had 15 toy blocks. She gave 7 to her brother. How many blocks are left?
    Show answer

    15 − 7 = 8. 8 blocks are left.

  2. A box has 6 red crayons and 8 blue crayons. How many crayons in all?
    Show answer

    6 + 8 = 14. 14 crayons in all.

  3. There were 18 cupcakes. 9 were eaten. How many cupcakes remain?
    Show answer

    18 − 9 = 9. 9 cupcakes remain.

  4. You have 7 marbles and find 7 more. How many marbles now?
    Show answer

    7 + 7 = 14. 14 marbles now.

  5. There are 20 cookies. 5 are given away. How many cookies are left?
    Show answer

    20 − 5 = 15. 15 cookies left.

Quick Tip
Look for words like “in all” (add) or “left”/“more” (subtract).
Teacher Resources
Lesson Plan

Solving Mixed Operation Word Problems

Standards
2.OA.A.1
Printable Aids
Problem Solving Steps PosterCounters
Teaching Notes

Focus on identifying keywords (e.g., 'in all,' 'left') and the problem's context to determine the correct operation. Encourage drawing or using manipulatives to visualize the problem before solving.

Vocabulary
Mixed Operations: Using both addition and subtraction.
Determine: To figure out or decide.
Common Mistakes
  • Choosing the incorrect operation (addition instead of subtraction or vice-versa).
  • Making calculation errors even after setting up the problem correctly.
  • Misunderstanding the question or relevant numbers within the story.
Differentiation
SupportUse manipulatives; underline keywords; draw pictures.
ChallengeWrite own problems; explain reasoning; use larger numbers.
Discussion Questions
  • What clues helped you decide if you needed to add or subtract?
  • How can you check your answer to make sure it is reasonable?
  • Can you retell the story problem in your own words?
  • What would happen if we changed an 'add' word (like 'altogether') to a 'subtract' word (like 'left')?
Extension Activities
  • Sort problems by operation.
  • Create your own stories.
  • Use manipulatives.
Parent Tip

Use toys to create stories asking 'how many now?' or 'how many left?'.

Learning Path
Skill Cluster

Problem Solving & Operations

Grade Level

2-3

Skills Practiced
Solve addition word problemsSolve subtraction word problemsDistinguish operations