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How can the Associative Property be used to mentally find 48 +82? i know the answer is 130. don’t answer the expression plz.❗️❗️❗️
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How can the Associative Property be used to mentally find 48 +82? i know the answer is 130. don’t answer the expression plz.❗️❗️❗️

User Hermit Dave
by
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1 Answer

4 votes
You can look for friendly numbers such as
48 and 2, split 82 in 80 and 2 and then associate the numbers conveniently

48+ (2+80)=
(48+2)+80=
50+80 which you can do it and is 130 or

50+80=
50+50+30=
100+30 which is 130

User RiccardoCh
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