Question

7.3×10.2-0.73-0.72的简便运算？

Answer 1

7.3×10.2-0.73-0.72 将0.72放大成0.73-0.01，然后再拆开来进行计算，然后将0.73拆分成7.3x0.1最后得到相应的步骤如下
7.3x10.2 - 0.73 - (0.73-0.01)
=7.3x10.2 - 0.73-0.73+0.01
=7.3x10.2 - 0.73x2+0.01
=7.3x10.2 -7.3x0.1x2 +0.01
=7.3x(10.2-0.2) +0.01
=7.3x10 + 0.01
=73+0.01
=73.01

Answer 2

7.3×10.2-0.73-0.72的简便运算过程如下：
7.3×10.2-0.73-0.72
=0.73×1.02-0.73-0.72
=0.73×（1.02-1）-0.72
=0.73×0.02-0.72
=0.0146-0.72
=-0.7054
怀疑你题目中有一个符号错了，应该是这样子的：
7.3×10.2-0.73×0.72
=0.73×1.02-0.73×0.72
=0.73×（1.02-0.72）
=0.73×0.3
=0.219

Answer 3

7.3×10.2-0.73-0.72
=7.3×10+0.73×2-0.73×2+0.01
=73+0.01
=73.01

Answer 4

7.3×10.2一0.73一0.72
＝7.3×10＋7.3×0.2一（0.73＋0.72）
＝73＋（1.46一1.45）
＝73＋0.01
＝73.01

Answer 5

7.3×10.2-0.73-0.72
=7.3×10.2-7.3×0.1-7.3×0.1+0.1
=7.3×（10.2-0.1-0.1）+0.1
=73.1