口算6×0.03= 1÷0.25= 8÷1.6= 1-0.3×0.6= 43÷0.01= 300×0.04= 14-1.4= 1.3×0.5= 0.42
口算6×0.03=1÷0.25=8÷1.6=1-0.3×0.6=43÷0.01=300×0.04=14-1.4=1.3×0.5=0.42÷0.6=7-1.4=12-1.2...
口算6×0.03= 1÷0.25= 8÷1.6= 1-0.3×0.6= 43÷0.01= 300×0.04= 14-1.4= 1.3×0.5= 0.42÷0.6= 7-1.4= 12-1.2= 2.5+2.5×3= 9÷0.01= 43÷0.1= 8.4÷4= 3.9-3.9÷3= 5 9 + 7 9 = 2- 1 6 = 1 6 - 1 10 = 5 7 + 1 7 + 9 7 =
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