0.34+0.45= 0.57+0.9= 3.8+1.2= 10-2.5-2.5=
2.4×0.01= 7.8÷100= 1.08×4= 1÷4=
10÷0.5= 0÷0.38= 0.91÷9.1= 0.25×2=
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