Toán Lớp 5: Tính nhanh
1.36×11,2+63×11.2+11.2
2.2.35×14.5+2.35×84.5+2.35
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Toán Lớp 5: Tính nhanh
1.36×11,2+63×11.2+11.2
2.2.35×14.5+2.35×84.5+2.35
Comments ( 2 )
=11,2×(36+63+1)
=11,2×100
=1120
2)2,35×14,5+2,35×84,5+2,35
=2,35×(14,5+84,5+1)
=2,35×100
=235
– Áp dụng : a×b+a×c+a×d=a×(b+c+d)