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Hướng dẫn giải:
364 234 298 746
813 815 682 686
435 872 510 231
327 486 327 486
556 329 556 400
89 880 80 888
\(456.45+456.10-456.50\)
\(=456\left(45+10-50\right)\)
\(=456.5=2280\)
P/s : Dấu chấm là dấu nhân nha.
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????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
456 x 65 + 456 x 25 + 456 x 10
=456x(65+25+10)
=456x100
=45 600
Dài thế bố thằng nào tính đc