Вопрос:

Worksheet 2: Addition and Subtraction (within 50) Name: Date: Part A: Compute 1. 25+10= 2. 40-15= 3. 33+7= 4. 50-20= Part B: Solve the Equation 5. x + 12 = 30 → x = 6. x - 5 = 15 → x = Part C: One-Step Word Problem 7. Sarah has 30 stickers. She gives 12 to her friend. How many stickers does she have left? Part D: Two-Step Word Problem 8. Sarah has 30 stickers. She gets 10 more from her mom, then gives 12 to her friend. How many does she have now?

Ответ:

Worksheet 2: Addition and Subtraction (within 50)


Part A: Compute



  1. \( 25 + 10 = 35 \)

  2. \( 40 - 15 = 25 \)

  3. \( 33 + 7 = 40 \)

  4. \( 50 - 20 = 30 \)


Part B: Solve the Equation



  1. \( x + 12 = 30 \) → \( x = 30 - 12 \) → \( x = 18 \)

  2. \( x - 5 = 15 \) → \( x = 15 + 5 \) → \( x = 20 \)


Part C: One-Step Word Problem



  1. Sarah has 30 stickers. She gives 12 to her friend. How many stickers does she have left?

    Solution: \( 30 - 12 = 18 \) stickers.


    Ответ: 18 стикеров.




Part D: Two-Step Word Problem



  1. Sarah has 30 stickers. She gets 10 more from her mom, then gives 12 to her friend. How many does she have now?

    Solution: First, Sarah has \( 30 + 10 = 40 \) stickers. Then she gives 12 away, so she has \( 40 - 12 = 28 \) stickers.


    Ответ: 28 стикеров.



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