9.7+99.7+999.7+9999.7+99999.7
9.7+99.7+999.7+9999.7+99999.7
0.7+9.7+99.7+999.7+9999.7+99999.7+999999.7+9999999.7+9999999
简算9.7+99.7+999.7+9999.7+99999.7谢谢了,大神帮忙啊
9.7*38+9.7*63-9.7简算
9.7*0.47+1.53*9.7-9.7(简便计算)
9.7×98-9.7+9.7×3简便运算
999.6+999.7+999.8+1000.8+1000.7+1000.6简便运算
99.9+99.8-99.7=?简便计算
99.7%氧化锌中锌的含量是多少?
17.52-(9.7-0.48)+33.7
10.3×9.7(简算)
6.25*2*(9.7-4.9)