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(9.5%1.2x4)x0.6简算

5.7-1.9x0.2÷7.63.4÷(0.5+0.3x4)0.648÷[(0.4+0.5)x0.6]... 5.7-1.9x0.2÷7.6 3.4÷(0.5+0.3x4) 0.648÷[(0.4+0.5)...

=2.9×(5.137+4.633) =2.9×10 =29

你在算算 是210个6

8/9÷[(4/10+1/10)×4/3] =8/9÷(1/2×4/3) =8/9÷2/3 =8/9×3/2 =4/3 望采纳谢谢

见附图

第二题:60×2/1-60×3/1-60×5/1

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