is just like this:
which is just like these:
6 pencils 6 apples $6
+6 pencils +6 apples +$6
+7 pencils +7 apples +$7
---------- --------- ---
19 pencils 19 apples $19
which is just like this:
6 square roots of five
+6 square roots of five
+7 square roots of five
-----------------------
19 square roots of five
which is exactly the same as:
Edwin
