diff --git a/container/garray/garray_sorted_any.go b/container/garray/garray_sorted_any.go
index d056464d7..030840f11 100644
--- a/container/garray/garray_sorted_any.go
+++ b/container/garray/garray_sorted_any.go
@@ -446,7 +446,7 @@ func (a *SortedArray) binSearch(value interface{}, lock bool) (index int, result
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:
diff --git a/container/garray/garray_sorted_int.go b/container/garray/garray_sorted_int.go
index 28d3e97f9..3153c9cd5 100644
--- a/container/garray/garray_sorted_int.go
+++ b/container/garray/garray_sorted_int.go
@@ -443,7 +443,7 @@ func (a *SortedIntArray) binSearch(value int, lock bool) (index int, result int)
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:
diff --git a/container/garray/garray_sorted_str.go b/container/garray/garray_sorted_str.go
index 649732347..9e23da894 100644
--- a/container/garray/garray_sorted_str.go
+++ b/container/garray/garray_sorted_str.go
@@ -445,7 +445,7 @@ func (a *SortedStrArray) binSearch(value string, lock bool) (index int, result i
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = (min + max) / 2
+		mid = min + int((max-min)/2)
 		cmp = a.getComparator()(value, a.array[mid])
 		switch {
 		case cmp < 0:
diff --git a/container/gtree/gtree_btree.go b/container/gtree/gtree_btree.go
index 926898add..febc8ec9a 100644
--- a/container/gtree/gtree_btree.go
+++ b/container/gtree/gtree_btree.go
@@ -620,7 +620,7 @@ func (tree *BTree) middle() int {
 func (tree *BTree) search(node *BTreeNode, key interface{}) (index int, found bool) {
 	low, mid, high := 0, 0, len(node.Entries)-1
 	for low <= high {
-		mid = (high + low) / 2
+		mid = low + int((high-low)/2)
 		compare := tree.getComparator()(key, node.Entries[mid].Key)
 		switch {
 		case compare > 0:
diff --git a/os/gtimer/gtimer_timer.go b/os/gtimer/gtimer_timer.go
index f03a5118c..733c09d62 100644
--- a/os/gtimer/gtimer_timer.go
+++ b/os/gtimer/gtimer_timer.go
@@ -233,7 +233,7 @@ func (t *Timer) binSearchIndex(n int64) (index int, result int) {
 	mid := 0
 	cmp := -2
 	for min <= max {
-		mid = int((min + max) / 2)
+		mid = min + int((max-min)/2)
 		switch {
 		case t.wheels[mid].intervalMs == n:
 			cmp = 0