求0.56÷(0.08+0.12)×1.7简便计算
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求0.56÷(0.08+0.12)×1.7简便计算
求0.56÷(0.08+0.12)×1.7简便计算
求0.56÷(0.08+0.12)×1.7简便计算
0.56÷(0.08+0.12)×1.7
=0.56÷0.2×1.7
=7.8x1.7
=(8-0.2)(2-0.3)
=16-2.4-0.4+0.06
=13.26