5.85.8+0.5842+58怎样简算,0.1259.6280-96.2怎样简算

分类: 作业答案 • 2021-12-19 11:40:28

问题描述：

5.8*5.8+0.58*42+58怎样简算,0.125*9.62*80-96.2怎样简算

答

5.8*5.8+0.58*42+58
=5.8*5.8+5.8*4.2+5.8*10
=5.8*(5.8+4.2+10)
=5.8*20
=116
0.125*9.62*80-96.2（同理）
=10*9.62-96.2
=96.2-96.2
=0

答

通过移动小数点，找到同类项，进行合并。
5.8*5.8+0.58*42+58
=5.8*5.8+5.8*4.2+5.8*10
=5.8*(5.8+4.2+10)
=5.8*20
=116
0.125*9.62*80-96.2
=10*9.62-96.2
=96.2-96.2
=0

答

5.8*5.8+0.58*42+58
=5.8*5.8+5.8*4.2+5.8*10
=5.8*(5.8+4.2+10)
=5.8*20
=116
0.125*9.62*80-96.2
=10*9.62-96.2
=96.2-96.2
=0

5.8*5.8+0.58*42+58怎样简算,0.125*9.62*80-96.2怎样简算