问题
填空题
计算:2009×0.23+34×20.09+4.3×200.9=______.
答案
2009×0.23+34×20.09+4.3×200.9,
=2009×0.23+0.34×2009+0.43×2009,
=2009×(0.23+0.34+0.43),
=2009×1,
=2009;
故答案为:2009.
计算:2009×0.23+34×20.09+4.3×200.9=______.
2009×0.23+34×20.09+4.3×200.9,
=2009×0.23+0.34×2009+0.43×2009,
=2009×(0.23+0.34+0.43),
=2009×1,
=2009;
故答案为:2009.