5.4÷1又1/9+3.6×1/10+0.9简便计算？
2个回答
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5.4÷1又1/9+3.6×1/10+0.9
=5.4÷10/9+3.6×0.1+0.9
=5.4x0.9+0.9x0.4+0.9
=（5.4+0.4+1）x0.9
=6.8x0.9
=6.12
=5.4÷10/9+3.6×0.1+0.9
=5.4x0.9+0.9x0.4+0.9
=（5.4+0.4+1）x0.9
=6.8x0.9
=6.12
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5.4÷1又1/9+3.6×1/10+0.9
=5.4×0.9+0.36+0.9
=0.9×(5.4+0.4+1)
=0.9×6.8
=6.12..
=5.4×0.9+0.36+0.9
=0.9×(5.4+0.4+1)
=0.9×6.8
=6.12..
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