Question

0.34x3.4+6.6x0.66可以简便计算吗？

Answer 1

解：0.34×3.4+6.6×0.66
＝0.34×3.4+6.6×(0.34+0.3+0.02)
＝0.34×3.4+0.34×6.6+0.3×6.6+0.02×6.6
＝0.34×(3.4+6.6)+0.3×6.6+0.02×6.6
＝0.34×10+0.3×6.6+0.02×6.6
＝3.4+1.98+0.132
＝5.512

Answer 2

=0.34x3.4+6.6x0.66
=0.34x3.4+（3.4+3.2）x0.66
=0.34x3.4+3.4x0.66+3.2x0.66
=（0.34+0.66）x3.4+（3+0.2）x0.66
=3.4+1.98+0.132
=5.512

Answer 3

回答:0.34X3.4十6.6x0.66=(0.34十0.66)x(3.4十6.6)=1ⅹ10=10。

Answer 4

0.34x3.4+6.6x0.66
=0.34x3.4+（3.4+3.2）x0.66
=0.34x3.4+3.4x0.66+3.2x0.66
=（0.34+0.66）x3.4+（3+0.2）x0.66
=3.4+1.98+0.132
=5.512

Answer 5

原式=0.34×3.4+6.6×(1－0.34)
=0.34×3.4+6.6－6.6×0.34
=0.34(3.4－6.6)+6.6
=6.6－0.34×3.2
= 6.6－1.088
=5.512