口算.3×1×5=2×3×9=4×2+6=5×3=2=6×5×7=8×4×3=5+6×6=6×4+2=
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9...[99%]
3,4,5,6,9,8,1,2A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3
3,4,5,6,9,8,12A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,...[99%]
3,4,5,6,9,8,12A.2,3,6,5,4,1,8,9B.8,3,5,6,2,1,4,9C.9,2,5,6,3,4,8,1D.4,1,2,6,8,5,9,3