2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16[100%]
2/3,1/2,3/7,7/18,()A.4/11B.5/12C.7/15D.3/16
口算。16÷8=7×2=40÷5=21÷7=3×3=8×4=[99%]
口算。16÷8=7×2=40÷5=21÷7=3×3=8×4=