是有限小数的有,
是无限小数的有。
6×0.7=4.2
6.6×6.7=44.22
6.66×66.7=444.222
6.6666×6666.7=
×= 44444.22222
7.9×0.97.9 12.3×112.3÷1 9.6÷1.19.6
0÷19.8= 0.2×0.05= 0.6×1.5= 1.36+2.87+3.64=
0.42÷0.6= 10.3a-3a= 0.9÷0.01= 0.27+0.82=
0.21×0.3= 10-3²= 24×5= 25×4÷25×4=