diff --git a/策划/数值计算中减法与乘法.md b/策划/数值计算中减法与乘法.md
index e69de29..fd5bdd9 100644
--- a/策划/数值计算中减法与乘法.md
+++ b/策划/数值计算中减法与乘法.md
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+强调爽感用乘法，
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