Question

36X3.6-6.3十6.3X7.4怎样简便计算？

Answer 1

36X3.6-6.3十6.3X7.4
=36X3.6十6.3X6.4
=36X3.6十6.3X（10-3.6）
=36X3.6十63-6.3X3.6
=（36-6-0.3）*3.6+63
=30*3.6-0.3*3.6+63
=108+63-1.08
=170-0.08
=169.92

Answer 2

36X3.6-6.3十6.3X7.4
=36x3.6+6.3x(7.4-1)
=36x3.6+6.3x6.4
=36x(4-0.4)+6.3x(6+0.4)
=36x4-36x0.4+6.3x6+6.3x0.4
=144-14.4+37.8+2.52
=37.8-14.4+2.52+144
=23.4+2.52+144
=25.92+144
=169.92

Answer 3

36X3.6-6.3十6.3X7.4怎样简便计算？
36X3.6-6.3十6.3X7.4=36X3.6-6.3X（1-7.4）=36X3.6+6.3X6.4=129.6+40.32=169.92

Answer 4

36x3.6-6.3+6.3x7.4
=36x3.6-6.3x（1-7.4）
=36x3.6-6.3x（-6.4）
=129.6+40.32
=169.92