×1= 52﹣42= 0.75﹣0.5= ×
= 
÷
= 125×0.08=
0.5+0.02= 
÷= ÷
= 0.15×6= 12÷0.3= 0÷
=
×1= 52﹣42= 0.75﹣0.5= ×= ÷= 125×0.08=
0.5+0.02= ÷= ÷= 0.15×6= 12÷0.3= 0÷=
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