用计算器计算下面各题,你发现了什么规律
?|
(1)9 ×9+7= |
(2)1 ×81+18= |
|
98 ×9+6= |
12 ×81+27= |
|
987 ×9+5= |
123 ×81+36= |
|
9876 ×9十4= |
1234 ×81+45= |
|
98765 ×9+3= |
12345 ×81+54= |
|
987654 ×9+2= |
123456×81 +63= |
|
9876543 ×9+1= |
1234567 ×81+72= |
|
98765432 ×9+0= |
12345678 ×81+81= |
用计算器验证下面的计算是否正确.
88
×8=704888
×8=71048888
×8=7110488888
×8=711104888888
×8=71111048888888
×8=71111104![]()