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16.10.2020 • 
Mathematics

Isabelle collects hats and shoes. After collecting 18 hats this year, she had 39 hats and 49 shoes. Which shows how to find the number of hats she started off with at the beginning of the year?
OA. 18 x 49
ОВ.
39 - 18
OC.
18 + 39
OD
49 + 18

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