文档介绍：49×64= 23×78= 42×45= 25×52= 23×48=
4 9 2 3 4 2 2 5 2 3
× 6 4 × 7 8 × 4 5 × 5 2 × 4 8
24×36= 41×67= 43×54= 25×92= 43×73=
2 4 4 1 4 3 2 5 4 3
× 3 6 × 6 7 × 5 4 × 9 2 × 7 3
36×73= 94×54= 62×42= 50×25= 94×37=
3 6 9 4 6 2 2 5 9 4
× 7 3 × 5 4 × 4 2 × 5 0 × 3 7
25×53= 52×36= 48×94= 26×85= 57×57=
2 5 5 2 4 8 2 6 5 7
× 5 3 × 3 6 × 9 4 × 8 5 × 5 7
72×48= 54×62= 29×24= 32×52= 35×93=
7 2 5 4 2 9 3 2 3 5
× 4 8 × 6 2 × 2 4 × 5 2 ×9 3
27×64= 24×78= 46×35= 26×23= 45×28=
2 7 2 4 4 6 2 6 4 5
× 6 4 × 7 8 × 3 5 × 2 3 × 2 8
52×63= 24×27= 49×34= 35×42= 83×46=
5 2 2 4 4 9 3 5 8 3
× 6 3 × 2 7 × 3 4 × 4 2 × 4 6
26×62= 48×27= 92×35= 49×65= 64×57=
2 6 4 8 9 2 4 9 6 4
× 6 2 × 2 7 × 3 5 × 6 5 × 5 7
65×23= 82×26= 28×74= 36×65= 42×57=
6 5 8 2 2 8 3 6 4 2
× 2 3 × 2 6 × 7 4 × 6 5 × 5 7
32×68= 54×32= 98×34= 82×32= 65×23=
3 2 5 4 9 8 8 2 6 5
× 6 8 × 3 2 × 3 4 × 3 2 × 2 3
29×64= 24×78= 26×45= 27×52= 63×48=
2 9 2 4 2 6 2 7 6 3
× 6 4 × 7 8 × 4 5 × 5 2 × 4 8
47×36= 34×67= 36×54= 75×92= 93×73=
4 7 3 4 3 6 7 5 9 3
× 3 6 × 6 7 × 5 4 × 9 2 × 7 3
21×76= 48×57= 97×45= 65×29= 74×37=
2 1 4 8 9 7 6 5 7 4
× 7 6 × 5 7 × 4 5 × 2 9 × 3 7
65×83= 82×36= 25×94= 34×85= 45×57=
6 5 8 2 2 5 3 4 4 6
× 8 3 × 3 6 × 9 4 × 8 5 × 5 7
32×43= 54×52= 92×24= 32×52= 65×93=
3 2 5 4 9 2 3 2 6 5
× 4 3 × 5 2 × 2 4 × 5 2 × 9 3
45×64= 74×58= 62×53= 27×32= 65×48=
4 5 7 4 6 2 2 7 6 5
× 6 4 × 5 8 × 5 3 × 3 2 × 4 8
82×25= 34×27= 38×54= 25×92= 43×63=
8 2 3 4 3 8 2 5 4 3
× 2 5 × 2 7 × 5 4 × 9 2 × 6 3
28×46= 38×57= 37×45= 25×29= 54×37=
2 8 3 8 3 7 2 5 5 4
× 4 6 × 5 7 × 4 5 × 2 9 × 3 7
65×43= 42×26= 24×74= 34×45= 43×27=
6 5 4 2 2 4 3 4 4 3
× 4 3 × 2 6 × 7 4 × 4 5 × 2 7
32×69= 54×32= 46×74= 32×58= 67×63=
3 2 5 4 4 6 3 2 6 7