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Mathematics 17 Online
OpenStudy (anonymous):

if i had 40 frogs, and then took 20 away, how many left?

OpenStudy (anonymous):

20 frogs

OpenStudy (mattga2002):

? Why even ask ?

OpenStudy (anonymous):

you would have 20 because 20 plus 20 is 40

OpenStudy (mattga2002):

20

OpenStudy (anonymous):

k thanks

OpenStudy (study312):

40 - 20 = 20 4 - 2 = 2, now add a zero

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