(3.2+0.56)÷0.8
8.8×12.5
0.36×23÷0.23
9.7-22.78÷3.4
9.6×25
3.6÷0.15+3.6÷0.25
1.5×1= 910÷70= 2.2﹣1.9= 6÷7= 435+199=
+= -= ÷= 20×= ×=
16÷20%= 4.8÷(0.4+1.2)=
-(-)= 12÷0.25÷4=
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