Such "Internal Transfer" questions starts with the difference given.
The "giver" can either the one with more or less at first.
Students must be able to know the final difference between the 2 values at the end.
These questions usually appear in Paper 1 of P5 WA1 or WA2.
Calculator usage is not allowed.
Isabelle has 150 more books than Carol at first.
After Carol gives 10 books to Isabelle,
how many more books will Isabelle have than Carol?

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