÷2=
1÷ - ÷1=
8×1.25=
( + )×12=
0.32=
4.8a+0.2a=
2.07+0.3=
21×498≈
+0.625= ×= 24÷40%= 7.2÷0.9÷0.8=
1÷12= 23+16= 78÷7= 4×715= 525+0.3=
5÷53= 16×38= 35﹣12= 0.36+0.4= 8×(12+0.5)=
10-6=
×2.4=
8.4÷40%=
-÷=
72×=
3.1-3.01=
721÷89≈
0.25×4÷0.25×4=
47+53= 420÷70= 100-28.5= 0.03×8= 234- 199=
50×80= 2.7÷0.9= = 1÷ =