66大顺的题目,难于登天?分别在6个相同数字组成的6位数--111111,222222,333333,444444,555555,666666,777777,888888,999999中,只添上减号.能够形成多少个算式(不得负数的)?请写出具体等式来.
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![66大顺的题目,难于登天?分别在6个相同数字组成的6位数--111111,222222,333333,444444,555555,666666,777777,888888,999999中,只添上减号.能够形成多少个算式(不得负数的)?请写出具体等式来.](/uploads/image/z/12684314-2-4.jpg?t=66%E5%A4%A7%E9%A1%BA%E7%9A%84%E9%A2%98%E7%9B%AE%2C%E9%9A%BE%E4%BA%8E%E7%99%BB%E5%A4%A9%3F%E5%88%86%E5%88%AB%E5%9C%A86%E4%B8%AA%E7%9B%B8%E5%90%8C%E6%95%B0%E5%AD%97%E7%BB%84%E6%88%90%E7%9A%846%E4%BD%8D%E6%95%B0--111111%2C222222%2C333333%2C444444%2C555555%2C666666%2C777777%2C888888%2C999999%E4%B8%AD%2C%E5%8F%AA%E6%B7%BB%E4%B8%8A%E5%87%8F%E5%8F%B7.%E8%83%BD%E5%A4%9F%E5%BD%A2%E6%88%90%E5%A4%9A%E5%B0%91%E4%B8%AA%E7%AE%97%E5%BC%8F%28%E4%B8%8D%E5%BE%97%E8%B4%9F%E6%95%B0%E7%9A%84%29%3F%E8%AF%B7%E5%86%99%E5%87%BA%E5%85%B7%E4%BD%93%E7%AD%89%E5%BC%8F%E6%9D%A5.)
66大顺的题目,难于登天?分别在6个相同数字组成的6位数--111111,222222,333333,444444,555555,666666,777777,888888,999999中,只添上减号.能够形成多少个算式(不得负数的)?请写出具体等式来.
66大顺的题目,难于登天?
分别在6个相同数字组成的6位数--111111,222222,333333,444444,555555,666666,777777,888888,999999中,只添上减号.能够形成多少个算式(不得负数的)?
请写出具体等式来.
66大顺的题目,难于登天?分别在6个相同数字组成的6位数--111111,222222,333333,444444,555555,666666,777777,888888,999999中,只添上减号.能够形成多少个算式(不得负数的)?请写出具体等式来.
每种分别8个:
111-111=0,1111-11=1100,11111-1=11110,111-1-11=99,111-11-1=99,1111-1-1=1109
111-1-1-1=108,11-1-1-1-1=7
222-222=0,2222-22=2200,22222-2=22220,222-2-22=198,222-22-2=198,2222-2-2=2218
222-2-2-2=216,22-2-2-2-2=14
333-333=0,3333-33=3300,33333-3=33330,333-3-33=297,333-33-3=297,3333-3-3=3327
333-3-3-3=324,33-3-3-3-3=21
444-444=0,4444-44=4400,44444-4=44440,444-4-44=396,444-44-4=396,4444-4-4=4436
444-4-4-4=432,44-4-4-4-4=28
555-555=0,5555-55=5500,55555-5=55550,555-5-55=495,555-55-5=495,5555-5-5=5545
555-5-5-5=540,55-5-5-5-5=35
666-666=0,6666-66=6600,66666-6=66660,666-6-66=594,666-66-6=594,6666-6-6=6654
666-6-6-6=648,66-6-6-6-6=42
777-777=0,7777-77=7700,77777-7=77770,777-7-77=693,777-77-7=693,7777-7-7=7763
777-7-7-7=756,77-7-7-7-7=49
888-888=0,8888-88=8800,88888-8=88880,888-8-88=792,888-88-8=792,8888-8-8=8872
888-8-8-8=864,88-8-8-8-8=56
999-999=0,9999-99=9900,99999-9=99990,999-9-99=891,999-99-9=891,9999-9-9=9981
999-9-9-9=972,99-9-9-9-9=63
111-111 111-11-1 111-1-11 1111-11 1111-1-1 11111-1六个
6*9=54
54个