(-11)-(-22)-(-33)-(-44)-(-55)-(-66)
=(-11)+22+33+44+55+66
=(-22)+(11+22+33+44+55+66)
=(-22)+11(1+2+3+4+5+6)
=(-22)+11×21=(-22)+231
=209,
故答案为209.
计算(-11)-(-22)-(-33)-(-44)-(-55)-(-66)=_.
计算(-11)-(-22)-(-33)-(-44)-(-55)-(-66)=______.
数学人气:998 ℃时间:2019-12-08 08:01:50
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