The Chicago Cubs scored 2 home runs in the third inning, 1 home run in the fifth inning, and 2 home runs in the eighth for a combined total of 2+1+2= <<2+1+2=5>>5 home runs for the game.
The Cardinals scored 1 home run in the second inning and 1 home run in the fifth inning for a combined total of 1+1=<<1+1=2>>2 home runs for the game.
If the Chicago Cubs scored a total of 5 home runs in the game and the Cardinals scored a total of 2 home runs in the games then 5-2=<<5-2=3>>3 more home runs were scored by the Chicago Cubs than the Cardinals in the game.
#### 3