1.98×0.1=
5.6÷0.56=
8.76-7.6=
6.3+5.7÷0.3=
21.21÷7=
0.8×2.5=
0.56÷0.07=
0.7×0.9÷0.7×0.9=
24.6÷12=
8÷0.17≈(保留两位小数)
0.18÷2.5=
2x÷0.8=3.4
2.4x+3.6x=15
2.8x+3.4=10.12
3(x-2.8)=16.8