5.8乘以12用简便方法

Question

5.8乘以12用简便方法

Answer 1

利用乘法分配律简便计算。
5.8×12
=5.8×(10+2)
=5.8×10+5.8×2
=58+11.6
=69.6

Answer 2

5.8x12
=5.8x10+5.8x2
=58+11.6
=69.6