14.4+2×4.8-2.4×3应该怎样简便运算?
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解析:本题可用乘法分配律简便计算,则依题意可得,
14.4+2x4.8-2.4x3
=14.4+2x2x2.4-2.4x3
=14.4+4x2.4-2.4x3
=14.4+2.4x4-2.4x3
=14.4+2.4x(4-3)
=14.4+2.4x1
=14.4+2.4
=16.8
14.4+2x4.8-2.4x3
=14.4+2x2x2.4-2.4x3
=14.4+4x2.4-2.4x3
=14.4+2.4x4-2.4x3
=14.4+2.4x(4-3)
=14.4+2.4x1
=14.4+2.4
=16.8
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14.4+2x4.8-2.4x3
=14.4+2x2x2.4-2.4x3
=14.4+4x2.4-2.4x3
=14.4+2.4x4-2.4x3
=14.4+2.4x(4-3)
=14.4+2.4x1
=14.4+2.4
=16.8
=14.4+2x2x2.4-2.4x3
=14.4+4x2.4-2.4x3
=14.4+2.4x4-2.4x3
=14.4+2.4x(4-3)
=14.4+2.4x1
=14.4+2.4
=16.8
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14.4+2*4.8-2.4*3
=14.4+2*2*2.4-2.4*3
=14.4+2.4*(2*2-3)
=14.4+2.4
=16.8
望采纳,谢谢!
=14.4+2*2*2.4-2.4*3
=14.4+2.4*(2*2-3)
=14.4+2.4
=16.8
望采纳,谢谢!
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14.4+2x4.8-2.4x3
=2.4x6+2x2x2.4-2.4x3
=2.4x(6+4-3)
=2.4x7
=16.8
=2.4x6+2x2x2.4-2.4x3
=2.4x(6+4-3)
=2.4x7
=16.8
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