added score

static/math.js

@@ -1,12 +1,13 @@
-function update_board(f, o, s) {
+function update_board(f, o, s, score) {
     $("#first").text(f);
     $("#operation").text(o);
     $("#second").text(s);
+    $("#score").text(score);
 }
 
 function new_problem() {
     $.get("/api/v0/problem/", function(d) {
-        update_board(d["first"], d["operation"], d["second"]);
+        update_board(d["first"], d["operation"], d["second"], d["score"]);
         $("#answer").val("");
     })
 }