
35 295 2994 29993 299992 2999991简便运算怎么算?
1个回答
展开全部
35 + 295 +2994 +29993+ 299992+ 2999991
=35+300-5+3000-6+30000-7+30000-8+3000000-9
=3333300+35-(5+6+7+8+9)
=3333300+35-35
=3333300
=35+300-5+3000-6+30000-7+30000-8+3000000-9
=3333300+35-(5+6+7+8+9)
=3333300+35-35
=3333300
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