2.3×6= 6.5÷0.01= 0.36÷0.4= +=
0.82= 1.2×= -= 4.3÷2.5÷4=
7.15﹣1.5= +0.25=
40×18﹣60÷15
(12.5×8﹣60)÷0.4
3.14×2.77+0.223×31.4
803-207= ÷5= 798+150= + =
0.25×8= 1.5- = 7.5÷ = 0.77+0.3=
9.8-8= × = 45.54÷45= 24× =
0.9﹣0.45= 2.7+0.3= 4÷ ×4= 9÷0.9=
0.12×0.8= + = ÷ = 2.1﹣0.21=
2.5×4+2.5×4= + = - = 0.6﹣0.06=
0.1×25×4= 22.9÷2.29= 8×12.5%= 4.5×=
9+1÷10= ++= ÷= (+)×20=
86+124= ×63=49
2﹣= 1÷×=
10﹣3.6= 8.32÷4=
0.25×0.25= 0.38×90+3.8=