÷ 8=118……5
÷ 2= 324……
920-706÷2
(5.2+2.8)×52
33×28-25
180÷3×6
2×0.8= 75﹣20= ×12= 42÷=
+= 1.5÷3= 501×100≈ ×0÷=
1-0.92= - = ×3.2= ÷ ×5=
3.5+4.28= × = ÷ = 99×0.9+0.9=