Bearing in mind that all the Egyptians' animals died in Egypt (See 9:6) and Yisrael took all their animals with them (See 10:26), whose animals did they use to harness their chariots?
What is the meaning of "v'Shalishim Al Kulo"?
Rashi, Rashbam and Targum Onkelos: It means that each chariot was under the command of an officer (a) seasoned warrior. 1
Targum Yonasan: It refers to Pharaoh's innovation of adding a third 2 horse to each chariot, to increase its speed.
Moshav Zekenim: For each Yisrael, Pharaoh intended 3 to bring three Egyptians, and some say 30, and some say 300. All agree that Hashem brought 900 million angels (Midrash Sechel Tov 12:12) against them (one for each Egyptian 4 ).
Rashi writes that the most righteous Egyptian, kill him. In Avodah Zarah (26a), it says that we do not raise a Nochri from a pit (to save his life), nor do we throw him in!
Moshav Zekenim #1: Rashi discusses when Yisrael are in control. The Gemara discusses when Nochrim are in control.
Moshav Zekenim #2: Rashi discusses at a time of war. 1 You may kill even a Yisrael who seeks to kill you only if you have no other way to stop him; regarding a Nochri, it is permitted even if there is another way to stop him.
R. Bechayei: The Egyptians saw Hashem's power and intended to rebel against him. This was a war for Hashem (therefore, it is proper to kill them).
R. Bechayei: Even in war, we offer a city to surrender before we kill them!
Rashi writes that the best snake, crush its skull! What is the source?
Riva citing R"A: Rashi refers to Pharaoh, who is called Tanin and Nachash; he was the greatest snake.