Question

7.8×(4.7-3.627÷0.9)简便计算

Answer 1

7.8x（4.7-3.627÷0.9）

＝7.8x（4.7-4.03）

＝7.8x0.67

＝（8-0.2）x0.67

＝8x0.67-0.67x0.2

＝5.36-0.134

＝5.226

Answer 2

解：7.8×(4.7-3.627÷0.9)
=7.8X（4.7-4.03）
=7.8x0.67
=7.8x(0.7-0.03)
=7.8x0.7-7.8x0.03
=5.46-0.234
=5.226