diff --git a/contracts/test-utils/src/number_utils.ts b/contracts/test-utils/src/number_utils.ts
index 86aba372b7..94f9688c72 100644
--- a/contracts/test-utils/src/number_utils.ts
+++ b/contracts/test-utils/src/number_utils.ts
@@ -46,14 +46,14 @@ export function getRandomFloat(min: Numberish, max: Numberish): BigNumber {
 export const FIXED_POINT_BASE = new BigNumber(2).pow(127);
 
 /**
- * Convert `n` to fixed-point integer represenatation.
+ * Convert `n` to fixed-point integer representation.
  */
 export function toFixed(n: Numberish): BigNumber {
     return new BigNumber(n).times(FIXED_POINT_BASE).integerValue();
 }
 
 /**
- * Convert `n` from fixed-point integer represenatation.
+ * Convert `n` from fixed-point integer representation.
  */
 export function fromFixed(n: Numberish): BigNumber {
     return new BigNumber(n).dividedBy(FIXED_POINT_BASE);
diff --git a/contracts/utils/contracts/src/v08/interfaces/IAuthorizableV08.sol b/contracts/utils/contracts/src/v08/interfaces/IAuthorizableV08.sol
index 3102f2ed29..37d5fd7d54 100644
--- a/contracts/utils/contracts/src/v08/interfaces/IAuthorizableV08.sol
+++ b/contracts/utils/contracts/src/v08/interfaces/IAuthorizableV08.sol
@@ -45,7 +45,7 @@ interface IAuthorizableV08 is IOwnableV08 {
     /// @return authorizedAddresses Array of authorized addresses.
     function getAuthorizedAddresses() external view returns (address[] memory authorizedAddresses);
 
-    /// @dev Whether an adderss is authorized to call privileged functions.
+    /// @dev Whether an address is authorized to call privileged functions.
     /// @param addr Address to query.
     /// @return isAuthorized Whether the address is authorized.
     function authorized(address addr) external view returns (bool isAuthorized);
diff --git a/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol b/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
index 8c51f20ac6..71651a0f08 100644
--- a/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
+++ b/contracts/zero-ex/contracts/src/migrations/InitialMigration.sol
@@ -45,7 +45,7 @@ contract InitialMigration {
 
     /// @dev Initialize the `ZeroEx` contract with the minimum feature set,
     ///      transfers ownership to `owner`, then self-destructs.
-    ///      Only callable by `initializeCaller` set in the contstructor.
+    ///      Only callable by `initializeCaller` set in the constructor.
     /// @param owner The owner of the contract.
     /// @param zeroEx The instance of the ZeroEx contract. ZeroEx should
     ///        been constructed with this contract as the bootstrapper.