Toán Lớp 6: tính nhanh : 267. 39 + 267. 25 + 733. 34 làm giúp mik vs

267.39+267.25+733.64 = 267.(39+25)+733.64 = 267.64+733.64 = 64.(267+733) = 64000

267. 39 + 267. 25 + 733. 64 = 267 . ( 39 + 25 ) + 733 . 64 = 267 . 64 + 733 . 64 = 64 . ( 267 + 733 ) = 64 . 1000 = 64000

Toán Lớp 6: tính nhanh : 267. 39 + 267. 25 + 733. 34 -

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