How to make simple cloze cards?

There are two ways to make cloze cards:

(a) Logseq's Cloze Syntax

Example 1

The capital of Japan is {{cloze Tokyo}}.

(b) Cloze Org Blocks

Example 1

The Pythagorean theorem is
#+BEGIN_CLOZE
$$c=\sqrt{ a^{2}+b^{2} }$$
#+END_CLOZE