Toán Lớp 5: Tính nhanh
2,7 x 4,5 + 0,9 : 2 x 73
1,47 x 25% + 3/4 x 1,47
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Toán Lớp 5: Tính nhanh
2,7 x 4,5 + 0,9 : 2 x 73
1,47 x 25% + 3/4 x 1,47
Comments ( 2 )
=27 × 0,45 + 0,45× 73
=0,45×(27+73)
=0,45×100
=45
=1,47 × 1/4 + 3/4 ×1,47
=1,47×(1/4+3/4)
=1,47×1
=1,47