无
*注意事项:
180×0.068= 12.24÷6.8=
1.8×=1.224 1.224÷=0.68
8.9×1.58.9 2.8÷0.92.8
8.74÷0.978.74×0.97 7.5÷0.257.5×4
1.8÷0.1= 4.5÷0.5= 10-0.02= 0.15×4=
10.4×0.1= 5.2×5= 7.4÷0.74= 9.7+0.03=
4.9×0.1÷4.9×0.1= 9×1.25×0.8=
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