500-419 = 81
81 - 47 = 34
(500-419) - 47 = 34,
183 * 5 = 915
915 + 302 = 1217
(183 * 5) + 302 = 1217
<var>(500-419)-47=34</var>
<var>183*5+302</var>= <var>1217</var>