Toán Lớp 5: : Tính bằng cách thuận tiện
3,27 ×0, 25 + 2,3 × 1/4 + 1,75 : 4 + 2,68 × 25%
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Toán Lớp 5: : Tính bằng cách thuận tiện
3,27 ×0, 25 + 2,3 × 1/4 + 1,75 : 4 + 2,68 × 25%
Comments ( 2 )
=3,27×25/100+2,3×1/4+1,75×1/4+2,68×25/100
=3,27×1/4+2,3×1/4+1,75×1/4+2,68×1/4
=(3,27+2,3+1,75+2,68)×1/4
=10×1/4
=5/2