Question
Penelope and her sister have some stickers. Penelope had 40 more stickers than her sister. After Penelope gave her sister 40 stickers, her sister has 98 stickers now.
  1. How many stickers did her sister have at first?
  2. How many stickers does Penelope have now?
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(a)

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(b)

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Penelope and her sister have some stickers. Penelope had 40 more stickers than her sister. After Penelope gave her sister 40 stickers, her sister has 98 stickers now.
  1. How many stickers did her sister have at first?
  2. How many stickers does Penelope have now?