先观察下列各题有什么特点再计算：8}.\:L1W2[7i
（1）23×278}.\:L1W2[7i
算式：提示:I;G.L)f8|5D.x+M9J-J0g.V8}.\:L1W2[7i
（2）46×448}.\:L1W2[7i
算式：提示)i+W:p9@'@)R;@/p'E8](E(F-L,V8}.\:L1W2[7i
（3）55×558}.\:L1W2[7i
算式：提示4U9b-]*]/L(p4C'g:x8}.\:L1W2[7i
（4）353×118}.\:L1W2[7i
算式：提示5U7g;`;Q+^:{0v6S8}.\:L1W2[7i
（5）638×98}.\:L1W2[7i
算式：提示/p9x+s4z+Z9P4}'w8}.\:L1W2[7i
（6）38×9998}.\:L1W2[7i
算式：提示'`5G/E4z.^'_)P+w8}.\:L1W2[7i