文档介绍：二（）一十（）九六十三七九（）四（）二十八（）八三十二二九（）三（）十五（）七二十一三六（）五（）四十五（）六十八二八（）六（）四十二（）八四十四九（）七（）六十三（）七四十二三三（）三（
一（
八（
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5× 9=9× 4=2× 8=7× 3=9× 2=5× 7=6× 6=2× 9=4× 6=3× 8=5× 8=2× 5=6× 8=7× × 4=1× 5=5× 4=7× 9=5× 1=9× 6=3× 8=3× 6=4× 3=5× 6=7× 7=9× 4=3× 5=9× 9=5×
5× 8=
7× 7=
5× 8=
4× 8=
4× 7=
8× 9=
3× 7=
6× 9=
7× 8=
6× 9=
5× 5=
5× 7=
5× 9=
8× 7=
3× 8=
6× 5=
7× 3=
2× 9=6× 6=
8/15
2× 5=
6× 9=
2× 5=
3× 5=
6× 7=
3× 4=
5× 9=
4× 7=
5× 8=
7× 7=
4× 9=
2× 7=
4× 9=
8× 4=
7× 9=
8× 8=
2× 6=
5× 9=2× 9=
6× 8=
4× 9=
7× 8=
9/15
3× 8=
4× 4=
3× 6=
5× 5=
4× 6=
7× 9=
6× 9=
3× 5=
6× 7=
3× 8=
6× 4=
7× 9=
3× 9=
6× 8=
3× 6=4× 6=
7× 2=
4× 6=
7× 4=
5× 9=
7× 8=
2× 8=
10/15
6× 7=
4× 9=
4× 7=
7× 8=
4× 9=
3× 9=
4× 7=
7× 6=
4× 9=
8× 3=
4× 3=
8× 9=3× 8=9× 6=6× 8=9× 9=3× 7=6× 8=5× 7=5× 6=3× 6=5× 6=3× 6=3× 7=7× × 8=6× 8=7× 9=4×)8=(×5=352× ()= 12 ( ) × 6=307× ()= 49
(
) × 9=813× ()=12
× 3=12() × 4=283 ×()=18×8=48()
× 7=42()
× 5=254× ()=246
× ()=364
× ()=365() ××()=307=35()
× 3=216× ()=542 × ()=186 × ()=48
() × 4=16() × 3=27()
× 6=187×)()=63(×7=496× ( )=54
(
) × 9=364× ( )=24
(
) × 8=485× ()=40
(
)
(
) × 8=32
4× ( )=28
(
)
(
) × 9=72
3× ( )=21
(
)
(
) × 9=54
7× ( )=56
(
)
11/15
(
) × 9=54
5× (
)=25
(
)
(
) × 7=35
5× (
)=45
(
)
(
) × 7=56
3× (
)=24
(
)
(
) × 5=30
7× (
)=21
(
)
(
) × 9=18
5× (
)=45
(
)
(
) × 7=35
5× (
)=40
(
) × 5=10
3× (
)=15
(
)
7=42
3×( )=12 ( )
9=4