diff --git a/macros/contexts/contextSignificantFigures.pl b/macros/contexts/contextSignificantFigures.pl
index 8e5287f18b..e2f698c6e0 100644
--- a/macros/contexts/contextSignificantFigures.pl
+++ b/macros/contexts/contextSignificantFigures.pl
@@ -18,10 +18,10 @@ =head1 DESCRIPTION
 
 or
 
-    Context('LimitedSignificantFigures');  # TO BE DONE
+    Context('LimitedSignificantFigures');
 
-where the latter context, you or the student are not allowed to perform any operations on
-any numbers.
+where the latter context, the student are not allowed to perform any operations on
+any numbers.  See below.
 
 This is primarily for decimal numbers and keep track of signficant figures.   With the context loaded,
 a call to C<Real> will parse the number or string to keep track of significant figures. For example,
@@ -39,13 +39,13 @@ =head1 DESCRIPTION
 
 returns the value C<20.63>, where the first number is rounded to the hundredths place before adding.
 
-   $x * $y;
+    $x * $y;
 
 returns C<106.4> (with only 4 signficant figures, since one of them only has four).
 
 Finally, we can also perform subtraction as in
 
-   $x - $y;
+    $x - $y;
 
 however, subtraction can lose significant figures.  The answer to this is C<0.23>, so only 2 significant
 figures.
@@ -116,6 +116,16 @@ =head3 Setting the number of significant figures.
 which has 6 significant figures.  If C<< $x->sigfigs(4) >>, then the result is the number '12.35', where
 rounding has been performed.
 
+=head3 LimitedSignificantFigures
+
+An additional available context is set with
+
+    Context('LimitedSignificantFigures');
+
+which disallows students from using any operators in their answers.  For instructors
+if the intent is to have your students understand Significant Figures, this is probably
+the context you want to use.
+
 =head2 SigFigNumber
 
 The function C<SigFigNumber> will also create a SigFigNumber with the second argument the number of
@@ -335,6 +345,10 @@ package context::SignificantFigures;
 
 sub Init {
 	my $context = $main::context{SignificantFigures} = context::SignificantFigures::Context->new();
+	$context         = $main::context{LimitedSignificantFigures} = $context->copy;
+	$context->{name} = 'LimitedSignificantFigures';
+	$context->operators->undefine($context->operators->names);
+	$context->parens->undefine('|', '{', '[');
 }
 
 package context::SignificantFigures::Context;
diff --git a/t/contexts/significant_figures.t b/t/contexts/significant_figures.t
index 89f23d2000..d3bba087b1 100644
--- a/t/contexts/significant_figures.t
+++ b/t/contexts/significant_figures.t
@@ -385,10 +385,30 @@ subtest 'Division' => sub {
 
 };
 
-# subtest 'Significant Figures for integers' => sub {
-# 	# my $a1 = Compute('1.0 * 10^2');
-# 	my $a1 = Compute('1.0E+02');
-# 	is $a1->format('E'), '1.0E+02', '1.0 * 10^2 internally is 1.0E+02';
-# };
+subtest 'Significant Figures for integers' => sub {
+	# my $a1 = Compute('1.0 * 10^2');
+	my $a1 = Compute('1.0E+02');
+	is $a1->format('E'), '1.0E+02', '1.0 * 10^2 internally is 1.0E+02';
+};
+
+subtest 'Use Compute for operations' => sub {
+	my $a1 = Compute('4.078+2.3');
+	is $a1->format('E'), '6.4E+00', 'Check that addition in Compute is correct.';
+	my $a2 = Compute('4.078-2.3');
+	is $a2->format('E'), '1.8E+00', 'Check that subtraction in Compute is correct.';
+	my $a3 = Compute('4.03*2.3');
+	is $a3->format('E'), '9.3E+00', 'Check that multiplication in Compute is correct.';
+	my $a4 = Compute('4.03/2.3');
+	is $a4->format('E'), '1.8E+00', 'Check that division in Compute is correct.';
+};
+
+subtest 'Check the LimitedSignificantFigures context' => sub {
+	Context('LimitedSignificantFigures');
+	like dies { Compute('4.078+2.3') }, qr/Can't use '\+' in this context/, 'Check that + is not defined.';
+	like dies { Compute('4.078-2.3') }, qr/Can't use '\-' in this context/, 'Check that - is not defined.';
+	like dies { Compute('4.03*2.3') },  qr/Can't use '\*' in this context/, 'Check that * is not defined.';
+	like dies { Compute('4.03/2.3') },  qr/Can't use '\/' in this context/, 'Check that / is not defined.';
+	like dies { Compute('4.03^3') },    qr/Can't use '\^' in this context/, 'Check that ^ is not defined.';
+};
 
 done_testing();