简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/01 07:47:18
简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7简算:计算0

简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7
简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7

简算:计算0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7
0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7
=0.7×13/11+0.7×9/11-6.6×3/7+3.3×8/7-2.2÷7/3
=0.7(13/11+9/11)-3/7(-6.6+8.8)-2.2×3/7
=0.7×2+2.2×3/7-2.2×3/7
=1.4

0.7×13/11-6.6×3/7-2.2÷7/3+0.7×9/11+3.3×8/7
=(0.7×13/11+0.7×9/11)+(6.6×4/7-6.6×3/7-6.6*1/7)
=0.7×(13/11+9/11)+6.6×(4/7-3/7-1/7)
=0.7×2+6.6*0
=1.7

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