简便计算: 137+137×99、101×64-64

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简便计算: 137+137×99、101×64-64
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简便计算: 137+137×99、101×64-64
简便计算: 137+137×99、101×64-64

简便计算: 137+137×99、101×64-64
137+137×99
=137×(1+99)
=137×100
=13700
101×64-64
=(101-1)×64
=100×64
=6400

137+137×99
=137×﹙1+99﹚
=137×100
=13700
101×64-64
=﹙101-1﹚×64
=100×64
=6400

137-是哦