用面积模型计算四位数×四位数

GeoGebra 命令及参数

1. Random(1, 9) → a_1
2. Random(0, 9) → w_1
3. Random(0, 9) → b_2
4. Random(1, 9) → r_5
5. Point(yAxis) → D'
6. Vector(D, J) → i_{5}
7. Translate(F, i_{5}) → F'
8. Translate(F', i_{5}) → F''
9. Random(1, 9) → w_{5}
10. Random(0, 9) → v_{6}
11. Random(1, 9) → u_{4}
12. Random(1, 9) → v_3
13. Point(yAxis) → L
14. Polygon(A, E, M, C) → q1, e, l_2, a_2, g_4
15. Polygon(E, F, N, M) → q2, g_1, e_1, f_2, h_4
16. Polygon(G, H, K, J) → q5, g_2, h_3, k_1, j_{2}
17. Polygon(L, G, J, D) → q6, l_1, g_3, j_{7}, d_{2}
18. Segment(D, A) → q_{3}
19. Segment(J, E) → s_{4}
20. Segment(K, F) → t_{4}
21. Random(1, 9) → o_{3}
22. Random(1, 9) → b_1
23. Textfield(d_1) → a
24. Textfield(m_1) → b
25. Textfield(t_1) → g
26. Textfield(u_1) → h
27. Textfield(o_1) → m
28. Textfield(p_1) → n
29. Textfield(r_1) → q
30. Textfield(s_1) → r
31. Textfield(ansguess) → w_7
32. If(n_1 ≟ v_{6}, "√", "X") → text3
33. If(ansguess ≟ produc, "☺", "☹ ") → text7
34. Segment(L, H) → r_{3}
35. Segment(A, F) → m_{2}
36. Segment(D, K) → p_{3}
37. Vector(L, D) → c_{3}
38. Translate(H, i_{5}) → H'
39. Translate(K, i_{5}) → K'_{1}
40. Translate(K', i_{5}) → K''
41. Segment(D', K'') → j_{5}
42. Segment(K'', F') → m_{3}
43. Segment(F', F) → f_1
44. Segment(H, H') → h_1
45. Segment(K, K'_{1}) → i_1
46. Segment(K', K) → h_2
47. Segment(J', J) → i_2
48. Segment(D', D) → k_2
49. Textfield(c_2) → j
50. Textfield(e_2) → j_{6}
51. Textfield(n_2) → k
52. Textfield(o_2) → o
53. Textfield(p_2) → s
54. Textfield(q_2) → f
55. Textfield(r_2) → c
56. If(sidetrue, "√", "X") → text5
57. If(toptrue, "√", "X") → text2
58. Polygon(D, J, J', D') → q3, d_3, j_3, j', d'
59. Polygon(J, K, K', J') → q4, j_4, k_3, k', s_2
60. Polygon(K, K'_{1}, K'', K') → q7, k_4, k'_{1}, k'', t_2
61. Polygon(H, H', K'_{1}, K) → q8, h_5, h', f_3, k_5
62. Polygon(F, F', O, N) → q9, i_3, f_4, c_4, d_4
63. Translate(H', i_{5}) → H''
64. Translate(K'_{1}, i_{5}) → B
65. Translate(K'', i_{5}) → K'''
66. Segment(K'', K''') → l_3
67. Segment(K''', B) → n_3
68. Segment(B, K'_{1}) → s_3
69. Segment(H', H'') → t_3
70. Segment(H'', B) → a_3
71. Segment(F', F'') → b_3
72. Segment(F'', H'') → e_3
73. Textfield(u_2) → d
74. Textfield(v_2) → l
75. Textfield(w_{6}) → p
76. Textfield(u_3) → t
77. Polygon(K'_{1}, B, K''', K'') → q10, i_4, b_4, k''', l_4
78. Polygon(H', H'', B, K'_{1}) → q11, m_4, h'', b_5, n_4
79. Polygon(F', F'', I, O) → q12, p_4, q_4, r_4, e_4
80. Segment(C, I) → a_4
81. Polygon(C, M, G, L) → q13, c_5, m_5, g_5, l_5
82. Polygon(M, N, H, G) → q14, m_6, n_5, h_6, g_6
83. Polygon(N, O, H', H) → q15, n_6, o_4, f_5, h_7
84. Polygon(O, I, H'', H') → q16, o_5, i_6, p_5, q_5
85. Textfield(a_5) → i
86. Textfield(w_3) → u
87. Textfield(v_4) → v
88. Textfield(d_5) → w
89. Textfield(w_4) → w_2