口算0.6×8-2.4=7.2÷2.4×0.1=9.9×11-9.9=3.5+6.5÷0.5=(8.7+1.3)÷(1.3+8.7)=(1.25×16=2.6+0.44
口算0.6×8-2.4=7.2÷2.4×0.1=9.9×11-9.9=3.5+6.5÷0.5=(8.7+1.3)÷(1.3+8.7)=(1.25×16=2.6+0.44=...
口算0.6×8-2.4=7.2÷2.4×0.1=9.9×11-9.9=3.5+6.5÷0.5=(8.7+1.3)÷(1.3+8.7)=(1.25×16=2.6+0.44=0.36÷2=0.26×0.2=1.7+3=4×9×0.25=2.7÷0.03=4.5-0.24-1.76=
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