=
0.125×9×8=
0.99+1.1=
43÷1000=
48=
2×÷2×=
170﹣90=
0.46+0.4=
0.56÷0.8=
4:9=x:12 40%x=9.6
10﹣0.9= 28+82= 20×5%= +×0=
4.8÷0.8= += ×= 1÷-1=
1﹣0.01=
1+2.5%=
3.3﹣=
8+39= 69÷3= 400×9= 2.6+0.7=
18﹣2.5= + = ×5= 20× =
0.356×100= 4÷28= 15: = 98×12≈