Worksheet 2: Addition and Subtraction (within 50)
Part A: Compute
- \( 25 + 10 = 35 \)
- \( 40 - 15 = 25 \)
- \( 33 + 7 = 40 \)
- \( 50 - 20 = 30 \)
Part B: Solve the Equation
- \( x + 12 = 30 \) → \( x = 30 - 12 \) → \( x = 18 \)
- \( x - 5 = 15 \) → \( x = 15 + 5 \) → \( x = 20 \)
Part C: One-Step Word Problem
- 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
- 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.