8.4+2= 8.3-0.8= 9.7+5.7= 65.2-5=
0.3×0.7= 32.1÷10= 0.25×4= 4.5×0.2=
61.4-4= 59.8-15.8= 0.11×0.6= 98.7÷100=
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