The husband saves $335 x 4 = $<<335*4=1340>>1340 a month.
The wife saves $225 x4 = $<<225*4=900>>900 a month.
Together, they save $1340 + $900 = $<<1340+900=2240>>2240 in a month.
In 6 months, their total savings is $2240 x 6 = $<<2240*6=13440>>13440.
Half of the couple's savings is 13440 / 2 = $<<13440/2=6720>>6720.
Therefore, each child will receive 6720 / 4 = $<<6720/4=1680>>1680.
#### 1680