9999+8888+777+666+55+44+3+3=
1000+999+888+777+666+555+444+333+222+111+99+88+77+66+55+44+3
666+555+777=?
计算:(7777+8888)÷5-(888-777)×3=______.
1+2+3+4+.999+888+777+666+555+444+333+222+111=?
999×888+888×777+777×666=?
3*55+4*44+5*33=?
2,333,333 4,555,311 2,444,555 1,666,444 3,444,777 3,666,555英
999-888+777-666+999+999×0+777-444=?
用简便计算:99*7+11*37 666*387+226*333 8888*9999/2222
1+2+3+4……+9999999+10000000-9999-8888-7777-6666-5555-4444-333
(1+2+3+4+5+6+7+8+9+10)×(111+222+333+444+555+666+777+888+999+
33/3+44/4+55/5