diff --git a/scanner/scanner.go b/scanner/scanner.go
index a491691..63480ab 100644
--- a/scanner/scanner.go
+++ b/scanner/scanner.go
@@ -120,6 +120,13 @@ func (s *Scanner) Scan() (tok token.Token) {
 		case '"':
 			tok = token.STRING
 			s.scanString()
+		case '.':
+			ch = s.next()
+			if isDecimal(ch) {
+				tok = token.FLOAT
+				ch = s.scanMantissa(ch)
+				ch = s.scanExponent(ch)
+			}
 		}
 	}
 
@@ -177,6 +184,7 @@ func (s *Scanner) scanNumber(ch rune) token.Token {
 	}
 
 	ch = s.scanMantissa(ch)
+	fmt.Printf("ch = %q\n", ch)
 	if ch == '.' || ch == 'e' || ch == 'E' {
 		ch = s.scanFraction(ch)
 		ch = s.scanExponent(ch)
diff --git a/scanner/scanner_test.go b/scanner/scanner_test.go
index 29ff830..e4d75fb 100644
--- a/scanner/scanner_test.go
+++ b/scanner/scanner_test.go
@@ -101,37 +101,37 @@ func TestString(t *testing.T) {
 
 func TestNumber(t *testing.T) {
 	var tokenList = []tokenPair{
-		// {token.NUMBER, "0"},
-		// {token.NUMBER, "1"},
-		// {token.NUMBER, "9"},
-		// {token.NUMBER, "42"},
-		// {token.NUMBER, "1234567890"},
-		// {token.NUMBER, "00"},
-		// {token.NUMBER, "01"},
-		// {token.NUMBER, "07"},
-		// {token.NUMBER, "042"},
-		// {token.NUMBER, "01234567"},
-		// {token.NUMBER, "0x0"},
-		// {token.NUMBER, "0x1"},
-		// {token.NUMBER, "0xf"},
-		// {token.NUMBER, "0x42"},
-		// {token.NUMBER, "0x123456789abcDEF"},
-		// {token.NUMBER, "0x" + f100},
-		// {token.NUMBER, "0X0"},
-		// {token.NUMBER, "0X1"},
-		// {token.NUMBER, "0XF"},
-		// {token.NUMBER, "0X42"},
-		// {token.NUMBER, "0X123456789abcDEF"},
-		// {token.NUMBER, "0X" + f100},
-		// {token.FLOAT, "0."},
-		// {token.FLOAT, "1."},
-		// {token.FLOAT, "42."},
-		// {token.FLOAT, "01234567890."},
+		{token.NUMBER, "0"},
+		{token.NUMBER, "1"},
+		{token.NUMBER, "9"},
+		{token.NUMBER, "42"},
+		{token.NUMBER, "1234567890"},
+		{token.NUMBER, "00"},
+		{token.NUMBER, "01"},
+		{token.NUMBER, "07"},
+		{token.NUMBER, "042"},
+		{token.NUMBER, "01234567"},
+		{token.NUMBER, "0x0"},
+		{token.NUMBER, "0x1"},
+		{token.NUMBER, "0xf"},
+		{token.NUMBER, "0x42"},
+		{token.NUMBER, "0x123456789abcDEF"},
+		{token.NUMBER, "0x" + f100},
+		{token.NUMBER, "0X0"},
+		{token.NUMBER, "0X1"},
+		{token.NUMBER, "0XF"},
+		{token.NUMBER, "0X42"},
+		{token.NUMBER, "0X123456789abcDEF"},
+		{token.NUMBER, "0X" + f100},
+		{token.FLOAT, "0."},
+		{token.FLOAT, "1."},
+		{token.FLOAT, "42."},
+		{token.FLOAT, "01234567890."},
 		{token.FLOAT, ".0"},
 		{token.FLOAT, ".1"},
 		{token.FLOAT, ".42"},
 		{token.FLOAT, ".0123456789"},
-		// {token.FLOAT, "0.0"},
+		{token.FLOAT, "0.0"},
 		// {token.FLOAT, "1.0"},
 		// {token.FLOAT, "42.0"},
 		// {token.FLOAT, "01234567890.0"},