8.4÷0.7= 
×33= 
﹣
= 0.25×4= 3﹣
=÷25%= 4.8×
= 3.37+6.63= 
+
×2= 
×
=
1﹣100%= 3.6×
= 0.5﹣
+0.5﹣= 12.6÷3= 1.02﹣0.43=
1÷
= 10﹣1.34﹣3.66= 8÷
= 7+0÷7﹣7= 
×13÷=
8.4÷0.7= ×33= ﹣= 0.25×4= 3﹣=÷25%= 4.8×= 3.37+6.63= +×2= ×=
1﹣100%= 3.6×= 0.5﹣+0.5﹣= 12.6÷3= 1.02﹣0.43=
1÷= 10﹣1.34﹣3.66= 8÷= 7+0÷7﹣7= ×13÷=
．
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