Toán Lớp 5: 4,6 x 63 + 25 x 0,53 + 4,6 x 37 + 0,27 x 25
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Toán Lớp 5: 4,6 x 63 + 25 x 0,53 + 4,6 x 37 + 0,27 x 25
Comments ( 2 )
=4,6 x ( 63 + 37) + 25 x ( 0,53 + 0,27)
=4,6 x 100 + 25 x 1
=460 + 25
=485
=4,6 . 100 + 25 . 1
=460 + 25
=485