问题
填空题
计算:(3×10-5)2÷(3×10-1)2=______.
答案
原式=(9×10-10)÷(9×10-2)
=(9÷9)×(10-10÷10-2)
=10-8
=
.1 108
故答案为:
.1 108
计算:(3×10-5)2÷(3×10-1)2=______.
原式=(9×10-10)÷(9×10-2)
=(9÷9)×(10-10÷10-2)
=10-8
=
.1 108
故答案为:
.1 108