Question

9.99×222+3.33×333+3.33，的简便运算？

Answer 1

这个可以提取公因数，是3.33乘以（3乘以222+333+1）可以理解吗？？

Answer 2

9.99x222+3.33x333+3.33＝3.33x3x222+3.33x333+3.333x1＝3.33X（666+333+1）＝3.33x1000二3330

Answer 3

依题意可得，
9.99×222+3.33×333+3.33
=3.33×3×222+3.33×333+3.33
=3.33×(3×222+333+1)
=3.33×1000
=3330

Answer 4

解：9.99*222+3.33*333+3.33
=3.33*666+3.33*333+3.33*1
=3.33*(666+333+1)
=3.33*1000
=3330

Answer 5

原式＝3.33×666+3.33×333+3.33
＝3.33×（666+333+1）
＝3.33×1000
＝3330