Convert the following base $2($binary$)$ numbers to base $10.$

The binary numbers are grouped in $4$ bits for easy read. Show your steps.

$(10101101{)}_2$

$(101010111001{)}_2$

$(1011001011101010{)}_2$

$(10011010110110111010{)}_2$

$(101010111010100011101101{)}_2$

$(1010{)}_2$

$(1110{)}_2$

$(1111{)}_2$

$(1100{)}_2$