diff --git a/map2-right/lib/assign.js b/map2-right/lib/assign.js
index 0153ecaa..be556ccc 100644
--- a/map2-right/lib/assign.js
+++ b/map2-right/lib/assign.js
@@ -138,7 +138,7 @@ function map2Right( x, y, out, fcn, thisArg ) {
 			throw new TypeError( format( 'invalid argument. If the input arrays are array-like objects, the output array must also be an array-like object. Value: `%s`.', out ) );
 		}
 		if ( x.length !== y.length || y.length !== out.length ) {
-			throw new RangeError( 'invalid arguments. Input and output arrays must have the same number of elements ( i.e., length).' );
+			throw new RangeError( 'invalid arguments. Input and output arrays must have the same number of elements (i.e., length).' );
 		}
 		arrayFcn( arraylike2object( x ), arraylike2object( y ), arraylike2object( out ), fcn, thisArg ); // eslint-disable-line max-len
 		return out;
diff --git a/map2d/lib/main.js b/map2d/lib/main.js
index c1d340ed..839c1ae7 100644
--- a/map2d/lib/main.js
+++ b/map2d/lib/main.js
@@ -78,7 +78,7 @@ function map2d( arr, fcn, thisArg ) {
 	for ( i = 0; i < M; i++ ) {
 		a = arr[ i ];
 		if ( !isArrayLikeObject( a ) ) { // note: cannot support the more general "collections" here (which includes typed arrays having more than 2^32-1 elements), as the output array is limited to 2^32-1 elements; thus, we opt for the lowest common denominator: generic arrays
-			throw new TypeError( format( 'invalid argument. First argument must be an array-like object containing array-like objects. Index: %u. Value: `%s`.', i, a ) );
+			throw new TypeError( format( 'invalid argument. First argument must be an array-like object containing array-like objects. Index: `%u`. Value: `%s`.', i, a ) );
 		}
 		N = a.length;
 		tmp = [];
diff --git a/reduce2d/lib/main.js b/reduce2d/lib/main.js
index ba0008ae..47ac31fb 100644
--- a/reduce2d/lib/main.js
+++ b/reduce2d/lib/main.js
@@ -89,7 +89,7 @@ function reduce2d( arr, initial, reducer, thisArg ) {
 	for ( i = 0; i < M; i++ ) {
 		a = arr[ i ];
 		if ( !isCollection( a ) ) {
-			throw new TypeError( format( 'invalid argument. First argument must be an array-like object containing array-like objects. Index: %u. Value: `%s`.', i, a ) );
+			throw new TypeError( format( 'invalid argument. First argument must be an array-like object containing array-like objects. Index: `%u`. Value: `%s`.', i, a ) );
 		}
 		N = a.length;
 		acc = initial[ i ];
diff --git a/uncurry-right/lib/uncurry_right.js b/uncurry-right/lib/uncurry_right.js
index 6836e7b0..d957b100 100644
--- a/uncurry-right/lib/uncurry_right.js
+++ b/uncurry-right/lib/uncurry_right.js
@@ -97,7 +97,7 @@ function uncurryRight( fcn, arity, thisArg ) {
 				if ( isFunction( f ) ) {
 					f = f.call( context, arguments[ i ] );
 				} else {
-					throw new Error( format( 'invalid invocation. The configured arity exceeds the number of possible curried function invocations. Expected: %u. Actual: %u.', len, i ) );
+					throw new Error( format( 'invalid invocation. The configured arity exceeds the number of possible curried function invocations. Expected: `%u`. Actual: `%u`.', len, i ) );
 				}
 			}
 			return f;
@@ -106,7 +106,7 @@ function uncurryRight( fcn, arity, thisArg ) {
 			if ( isFunction( f ) ) {
 				f = f.call( context, arguments[ i ] );
 			} else {
-				throw new Error( format( 'invalid invocation. Number of arguments exceeds the number of possible curried function invocations. Expected: %u. Actual: %u.', arguments.length, i ) );
+				throw new Error( format( 'invalid invocation. Number of arguments exceeds the number of possible curried function invocations. Expected: `%u`. Actual: `%u`.', arguments.length, i ) );
 			}
 		}
 		return f;