Question

6.3×5.7+36×0.57+51×0.01简便方法？

Answer 1

你这个题目应该是错的，应该是下图

Answer 2

6.3×5.7+36×0.57+51×0.01
=（7×0.1×9）×（0.1×57）+（4×9）×（0.01×57）+（57﹣6）×0.01
=7×9×（0.1×0.1）×57+4×9×0.01×57+57×0.01﹣6×0.01
=【7×9×0.01×57+4×9×0.01×57+0.01×57】﹣0.06
=【（7+4）×9+1】×0.01×57﹣0.06
=【11×9+1】×0.01×57﹣0.06
=【99+1】×0.01×57﹣0.06
=100×57×0.01﹣0.06
=57﹣0.06=56.94

Answer 3

6.3x5.7+36x0.57+51x0.01
=5.7x(6.3+3.6)+51x0.01
=5.7x9.9+51x0.01
=57x0.99+51x0.01(假如原题中的51是57就简便多了)
=56.43+0.51
56.94

Answer 4

6.3*5.7+3.6*5.7+51*0.01
=6.3*5.7+3.6*5.7+（5.7-0.6）*0.1
=（6.3+3.6+0.1）*5.7-0.06
=57-0.06
=56.94

Answer 5

原式＝6.3×5.7+3.6×5.7+51×0.01
＝（6.3+3.6）×5.7+51×0.01
＝（10-0.1）×5.7+0.51
＝57-0.57+0.51
＝56.94