= = = =
0.25= 0.76÷0.4= 1.6×12%= 1﹣4÷8=
3.14×11= 5.06+1.2= 0.9×99+0.9= =
13.3+6.7= 12= = 49×101≈
21×50= 12.5×8= 0.72÷0.8= =