5.6+4= 1.2×0.7= 8.2-8.2÷2=
3.8÷0.1= 17.3-2.2-7.8= 3.6×0.4÷3.6×0.4=
2.4×5= 0.3+0.3×0.3= 0.25×0.7×4 =
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