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能简便的要简便．715×38+115×716+115×3123.142+68.6×1.3142006÷200620062007+120085123÷53+7134÷74+9145÷95．
题目详情
能简便的要简便．
×
+
×
+
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
×
+
×
+
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
7 7 15 15
+
×
+
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
3 3 8 8
×
+
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
1 1 15 15
+
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
7 7 16 16
×3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
1 1 15 15 3
3.142+68.6×1.314
2006÷2006
+
51
÷
+71
÷
+91
÷
．
1 1 2 2
2
+
51
÷
+71
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+91
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．
2006 2006 2007 2007
51
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+71
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+91
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1 1 2008 2008
÷
+71
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+91
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+71
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+91
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5 5 3 3
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+91
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+91
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7 7 4 4
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4 4 5 5
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9 9 5 5
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3.142+68.6×1.314
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3.142+68.6×1.314
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3.142+68.6×1.314
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3.142+68.6×1.314
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51
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3.142+68.6×1.314
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51
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3.142+68.6×1.314
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3.142+68.6×1.314
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▼优质解答
答案和解析
（1）715×38+115×716+115×312 =115×（218+716+72）=115×10516=716（2）3.142+68.6×1.314=3.14×3.14+68.6×（1+0.314）=3.14×3.14+68.6+68.6×0.314=3.14×3.14+68.6+6.86×3.14=3.14×（3.14+6.86）+68...
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