Toán Lớp 5: 2,37 x 7,2 + 5 x 7,2 + 72 x 0,1 x 2,63
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Toán Lớp 5: 2,37 x 7,2 + 5 x 7,2 + 72 x 0,1 x 2,63
Comments ( 2 )
2,37 x 7,2 + 5 x 7,2 + 72 x 0,1 x 2,63
=7,2 x (2,37 + 5) + 7,2 x 2,63
=7,2 x (7,37 + 2,63)
=7,2 x 10
=72
2,37×7,2+5×7,2+72×0,1×2,63
=2,37×7,2+5×7,2+(72×0,1)×2,63
=2,37×7,2+5×7,2+7,2×2,63
=7,2×(2,37+5+2,63)
=7,2×10
=72