English class is over and we are

I want to know how to add

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A

140+369

12×12=

20×20=

12×13=

8×19=

40×40=

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Jim had a large collection of basketball cards.She decided to give half to her freind Erin and a fourth of them to her brother.she still has 75 cards laft.How many cards did she start with.

25+4