Question

8.3x99+0.83简便计算？

8.3x99十0.83

Answer 1

解原式=8.3×99+8.3×0.1
=8.3×（99+0.1）
=8.3×99.1
=822.53

Answer 2

8.3×99+0.83
=8.3×（100-1）+0.83
=830-8.3+0.83=822.53

Answer 3

8.3×99＋0.83＝8.3×100-8.3＋0.83＝830-8.3+0.83＝822.53

Answer 4

8.3×99+0.83＝822.53
＝0.83（990＋1）
＝0.83×991
＝822.53

Answer 5

0.83×10×（100-1）+0.83＝0.83×（1000-10+1）＝830-8.3+0.83＝822.53