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12.5+7.5= 72×10%= ×0.5 ÷ ×0.5=
0.6÷0.3= 0.2×0.5= 1÷4÷5=
3.5×0.2= 10÷0.5= 680+35= 800-27=
1.25×0.8= 3.9×0.01= 1.2×0.4= 0.63÷0.9=
20.04
0.25
0.672
5.42
2.6132.614 (36+15)×10036×15+100
70g0.7kg 570cm5.70cm 4.3004.3
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