用简便方法计算 19.2\2.4x3.2 12.5x0.32x0.5 14.3\1.1-1.8 3.2x2.4+32x0.76 = = = = =
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19.2\2.4x3.2
=19.2÷8÷0.3×3.2
=2.4÷0.3×3.2
=8×3.2
=25.6
12.5x0.32x0.5
=12.5×0.8×0.4×0.5
=10×0.2
=2
14.3\1.1-1.8
=13-1.8
=11.2
3.2x2.4+32x0.76
=3.2×2.4+3.2×7.6
=3.2×（2.4+7.6）
=3.2×10
=32
=19.2÷8÷0.3×3.2
=2.4÷0.3×3.2
=8×3.2
=25.6
12.5x0.32x0.5
=12.5×0.8×0.4×0.5
=10×0.2
=2
14.3\1.1-1.8
=13-1.8
=11.2
3.2x2.4+32x0.76
=3.2×2.4+3.2×7.6
=3.2×（2.4+7.6）
=3.2×10
=32
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