÷= ×= += -=
6×= 2-= 12÷= ×3÷×3=
列式:
810÷30= 0.38+3.8= 0.15×0.2=
÷= ﹣×0= ×3÷3×=
0.56÷0.8= = = =
5×( )= 30×= 0.53= 3﹣=
4.68﹣4= += 0.8×= ÷= 0.42=
12.6÷3= ÷0.75= 3.8÷10%= 41×348×0= 1÷3×=