diff --git a/src/public/value/number.rs b/src/public/value/number.rs
index 1fabe3f..e586e77 100644
--- a/src/public/value/number.rs
+++ b/src/public/value/number.rs
@@ -33,6 +33,7 @@ impl Number {
         }
 
         match (dividend, divisor) {
+            (Self::Int(i1), Self::Int(i2)) => Number::Int(i1 % i2),
             (Self::Int(i), Self::Fraction(upper, lower)) | (Self::Fraction(upper, lower), Self::Int(i)) => {
                 let temp1 = i * lower;
                 let temp2 = upper * lower;
diff --git "a/tutorials/CN/\350\257\255\346\263\225\346\225\231\347\250\213/operators.calcrs" "b/tutorials/CN/\350\257\255\346\263\225\346\225\231\347\250\213/operators.calcrs"
index 0951d12..8711f78 100644
--- "a/tutorials/CN/\350\257\255\346\263\225\346\225\231\347\250\213/operators.calcrs"
+++ "b/tutorials/CN/\350\257\255\346\263\225\346\225\231\347\250\213/operators.calcrs"
@@ -3,6 +3,10 @@ out 1 + 2 # 3
 out 1 - 2 # -1
 out 1 * 2 # 2
 out 1 / 2 # 0.5000000000
+
+# 模运算
+out 8 % 2 # 0
+# 乘方运算
 out 2 ^ 2 # 4
 
 # 非操作符
diff --git a/tutorials/EN/syntax/operators.calcrs b/tutorials/EN/syntax/operators.calcrs
index 287c5f7..c84d582 100644
--- a/tutorials/EN/syntax/operators.calcrs
+++ b/tutorials/EN/syntax/operators.calcrs
@@ -3,6 +3,10 @@ out 1 + 2 # 3
 out 1 - 2 # -1
 out 1 * 2 # 2
 out 1 / 2 # 0.5000000000
+
+# modular operator
+out 8 % 2 # 0
+# power operator
 out 2 ^ 2 # 4
 
 # not operator