Rashi: 1 Eifah = 3 Sa'ah;
1
1 Sa'ah = 6 Kabin; 1 Kav = 4 Lugin; 1 Log = 6 egg-volumes. Consequently, 1 Eifah + 432 egg-volumes; and a tenth of an Eifah = 43 1/5 egg-volumes, which is the Shi'ur for taking Chalah and the Shi'ur of Menachos.
2
Eruvin 83b: This teaches us that the 'dough in the desert' comprised seven Lugin plus one and a fifth egg-volumes.
2)
Why does the Torah insert this Pasuk here?
1.
Ba'al ha'Turim: To teach us that, after Moshe's death - on the seventh of Adar - they continued to eat the Manna until they brought the Omer on the sixteenth of Nisan.
