⑴1.25×7.9×0.8
⑵63÷(1.7+1.9)+4.8
⑶8.4×13.5﹣3.5×8.4
⑷9.2÷0.25÷0.4
7.2÷4= 5.01-1.8= 3.29+0.2= 12÷0.8=
12.9÷0.3= 0.3×2= 1.05÷0.3= 0.32÷0.04=
列式:
0.462÷2.2= 21×0.22=