diff --git a/deps.edn b/deps.edn
index 29f6b7b7..0a30b667 100644
--- a/deps.edn
+++ b/deps.edn
@@ -135,7 +135,8 @@
                          com.layerware/hugsql-core {:mvn/version "0.5.3"}
                          com.github.seancorfield/expectations {:mvn/version "2.0.157"}
                          com.rpl/specter {:mvn/version "1.1.4"}
-                         com.github.askonomm/clarktown {:mvn/version "1.1.2"}}
+                         com.github.askonomm/clarktown {:mvn/version "1.1.2"}
+                         org.clojure/math.numeric-tower {:git/tag "math.numeric-tower-0.0.5", :git/sha "12eb9c5", :git/url "https://github.com/clojure/math.numeric-tower"}}
             :classpath-overrides {org.clojure/clojure nil
                                   org.clojure/spec.alpha nil}}
            :clj-nvd
diff --git a/doc/libraries.csv b/doc/libraries.csv
index b568ad77..b6d89c55 100644
--- a/doc/libraries.csv
+++ b/doc/libraries.csv
@@ -74,6 +74,7 @@ org.clojure/data.generators,https://github.com/clojure/data.generators
 org.clojure/data.json,https://github.com/clojure/data.json
 org.clojure/data.zip,https://github.com/clojure/data.zip
 org.clojure/math.combinatorics,https://github.com/clojure/math.combinatorics
+org.clojure/math.numeric-tower,https://github.com/clojure/math.numeric-tower
 org.clojure/test.check,https://github.com/clojure/test.check
 org.clojure/tools.gitlibs,https://github.com/clojure/tools.gitlibs
 org.clojure/tools.namespace,https://github.com/babashka/tools.namespace
diff --git a/script/add-libtest.clj b/script/add_libtest.clj
similarity index 99%
rename from script/add-libtest.clj
rename to script/add_libtest.clj
index 9eeea5f2..dd968c1e 100755
--- a/script/add-libtest.clj
+++ b/script/add_libtest.clj
@@ -11,11 +11,11 @@
   (:require [babashka.deps :as deps]
             [babashka.fs :as fs]
             [babashka.tasks :refer [shell]]
-            [org.httpkit.client :as http]
-            [clojure.string :as str]
+            [clojure.edn :as edn]
             [clojure.java.io :as io]
+            [clojure.string :as str]
             [clojure.tools.cli :as cli]
-            [clojure.edn :as edn]))
+            [org.httpkit.client :as http]))
 
 (deps/add-deps '{:deps {org.clojure/tools.gitlibs {:mvn/version "2.4.172"}
                         borkdude/rewrite-edn {:mvn/version "0.1.0"}
diff --git a/test-resources/lib_tests/bb-tested-libs.edn b/test-resources/lib_tests/bb-tested-libs.edn
index 60c502de..9cd8076e 100644
--- a/test-resources/lib_tests/bb-tested-libs.edn
+++ b/test-resources/lib_tests/bb-tested-libs.edn
@@ -113,4 +113,5 @@
  com.github.seancorfield/expectations {:git-url "https://github.com/clojure-expectations/clojure-test", :test-namespaces (expectations.clojure.test-test), :git-sha "b30fefd97d9eb7d1f47e06956521f354cb926b03"}
  com.rpl/specter {:git-url "https://github.com/redplanetlabs/specter", :test-namespaces (com.rpl.specter.cljs-test-helpers com.rpl.specter.test-helpers com.rpl.specter.core-test com.rpl.specter.zipper-test), :git-sha "67e86806020b9d02fbca8cdb1efad3002fc81a32"}
  com.github.askonomm/clarktown {:git-url "https://github.com/askonomm/clarktown", :test-namespaces (clarktown.core-test clarktown.parsers.horizontal-line-block-test clarktown.parsers.italic-test clarktown.parsers.link-and-image-test clarktown.parsers.empty-block-test clarktown.parsers.inline-code-test clarktown.parsers.heading-block-test clarktown.parsers.bold-test clarktown.parsers.quote-block-test clarktown.parsers.code-block-test clarktown.parsers.strikethrough-test), :git-sha "059bfa7bd9bfdde0c75646bf1dfc20d23da8a02c"}
+ org.clojure/math.numeric-tower {:git-url "https://github.com/clojure/math.numeric-tower", :test-namespaces (clojure.math.test-numeric-tower), :git-sha "97827be66f35feebc3c89ba81c546fef4adc7947"}
 }
diff --git a/test-resources/lib_tests/clojure/math/test_numeric_tower.clj b/test-resources/lib_tests/clojure/math/test_numeric_tower.clj
new file mode 100644
index 00000000..ba0ba266
--- /dev/null
+++ b/test-resources/lib_tests/clojure/math/test_numeric_tower.clj
@@ -0,0 +1,129 @@
+(ns clojure.math.test-numeric-tower
+  (:use clojure.test
+	clojure.math.numeric-tower))
+
+(deftest test-expt
+  (are [x y] (= x y)
+      (expt 2 3) 8
+      (expt (expt 2 16) 2) (expt 2 32)
+      (expt 4/3 2) 16/9
+      (expt 2 -10) 1/1024
+      (expt 0.5M 2) 0.25M
+      (expt 5 4.2) (Math/pow 5 4.2)
+      (expt 5.3 4) (Math/pow 5.3 4)
+      (expt 5.3 4) (Math/pow 5.3 4)
+      (expt 2 0) 1
+      (expt (java.math.BigInteger. "4") 0) (java.math.BigInteger. "1")
+      (expt 4M 0) 1M
+      (expt 8M 1) 8M
+      (expt 16M 16) 18446744073709551616M))
+
+(when-available clojure.lang.BigInt
+  (deftest test-expt-bigint
+    (are [x y] (= x y)
+      (expt (bigint 4) 0) (bigint 1))))
+
+(deftest test-abs
+  (are [x y] (= x y)
+      (abs -2) 2
+      (abs 0) 0
+      (abs 5) 5
+      (abs 123456789123456789) 123456789123456789
+      (abs -123456789123456789) 123456789123456789
+      (abs 5/3) 5/3
+      (abs -4/3) 4/3
+      (abs 4.3M) 4.3M
+      (abs -4.3M) 4.3M
+      (abs 2.8) 2.8
+      (abs -2.8) 2.8))
+
+(deftest test-gcd
+  (are [x y] (= x y)
+      (gcd 4 3) 1
+      (gcd 24 12) 12
+      (gcd 24 27) 3
+      (gcd 1 0) 1
+      (gcd 0 1) 1
+      (gcd 0 0) 0)
+  (is (thrown? IllegalArgumentException (gcd nil 0)))
+  (is (thrown? IllegalArgumentException (gcd 0 nil)))
+  (is (thrown? IllegalArgumentException (gcd 7.0 0))))
+
+(deftest test-lcm
+  (are [x y] (= x y)
+       (lcm 2 3) 6
+       (lcm 3 2) 6
+       (lcm -2 3) 6
+       (lcm 2 -3) 6
+       (lcm -2 -3) 6
+       (lcm 4 10) 20
+       (lcm 1 0) 0
+       (lcm 0 1) 0
+       (lcm 0 0) 0)
+  (is (thrown? IllegalArgumentException (lcm nil 0)))
+  (is (thrown? IllegalArgumentException (lcm 0 nil)))
+  (is (thrown? IllegalArgumentException (lcm 7.0 0))))
+
+(deftest test-floor
+  (are [x y] (== x y)
+      (floor 6) 6
+      (floor -6) -6
+      (floor 123456789123456789) 123456789123456789
+      (floor -123456789123456789) -123456789123456789
+      (floor 4/3) 1
+      (floor -4/3) -2
+      (floor 4.3M) 4
+      (floor -4.3M) -5
+      (floor 4.3) 4.0
+      (floor -4.3) -5.0))
+
+(deftest test-ceil
+  (are [x y] (== x y)
+      (ceil 6) 6
+      (ceil -6) -6
+      (ceil 123456789123456789) 123456789123456789
+      (ceil -123456789123456789) -123456789123456789
+      (ceil 4/3) 2
+      (ceil -4/3) -1
+      (ceil 4.3M) 5
+      (ceil -4.3M) -4
+      (ceil 4.3) 5.0
+      (ceil -4.3) -4.0))
+
+(deftest test-round
+  (are [x y] (== x y)
+      (round 6) 6
+      (round -6) -6
+      (round 123456789123456789) 123456789123456789
+      (round -123456789123456789) -123456789123456789
+      (round 4/3) 1
+      (round 5/3) 2
+      (round 5/2) 3
+      (round -4/3) -1
+      (round -5/3) -2
+      (round -5/2) -2
+      (round 4.3M) 4
+      (round 4.7M) 5
+      (round -4.3M) -4
+      (round -4.7M) -5
+      (round 4.5M) 5
+      (round -4.5M) -4
+      (round 4.3) 4
+      (round 4.7) 5
+      (round -4.3) -4
+      (round -4.7) -5
+      (round 4.5) 5
+      (round -4.5) -4))
+
+(deftest test-sqrt
+  (are [x y] (= x y)
+      (sqrt 9) 3
+      (sqrt 16/9) 4/3
+      (sqrt 0.25M) 0.5M
+      (sqrt 2) (Math/sqrt 2)))
+
+(deftest test-exact-integer-sqrt
+  (are [x y] (= x y)
+   (exact-integer-sqrt 15) [3 6]
+   (exact-integer-sqrt (inc (expt 2 32))) [(expt 2 16) 1]
+   (exact-integer-sqrt 1000000000000) [1000000 0]))