111
3231n
113
a2+b2=c2+d2
62+72=22+92=85
82+112=42+132=185
152+202=72+242=625
114
1234564
123567
123467
115
(1)dddddddddd
12345679=111111111÷9
(2)ddddddd
15873=111111÷7
(3)143×7=1001143×d×7=1 001×d=d 00d
(4)
1234=1111+111+11+1+0
(1111×9)+1=10000
(111×9)+1=1000
(11×9)+1=100
(1×9)+1=10
(0×9)+1=1
(1234×9)+5=11111
66×67=2×3×11×67
=22×201
=4422
666×67=2×3×111×67
=222×2001
=444222
116
46 174
61748
6 174
5
117
9 7 5 4 3 2
4
942×753=709326
4
118
11944
95
120
(2)69×71×73=357 627
(3)262+272=1405
(4)
5×5×5=125 6×6×6=216
566
5.84803553=200
111
3231n
113
a2+b2=c2+d2
62+72=22+92=85
82+112=42+132=185
152+202=72+242=625
114
1234564
123567
123467
115
(1)dddddddddd
12345679=111111111÷9
(2)ddddddd
15873=111111÷7
(3)143×7=1001143×d×7=1 001×d=d 00d
(4)
1234=1111+111+11+1+0
(1111×9)+1=10000
(111×9)+1=1000
(11×9)+1=100
(1×9)+1=10
(0×9)+1=1
(1234×9)+5=11111
66×67=2×3×11×67
=22×201
=4422
666×67=2×3×111×67
=222×2001
=444222
116
46 174
61748
6 174
5
117
9 7 5 4 3 2
4
942×753=709326
4
118
11944
95
120
(2)69×71×73=357 627
(3)262+272=1405
(4)
5×5×5=125 6×6×6=216
566
5.84803553=200