## Algebra 1

$(1$$\times$$10^{3}$$)+(2$$\times$$10^{2}$$)+(5$$\times$$10^{1}$$)+(4$$\times$$10^{0}$$)$
First, write 1254 out as an addition problem based on each digits place value. For example, 1000+200+50+4 Now, add the powers of 10 rule to the numbers expanded above $(1$$\times$$10^{3}$$)+(2$$\times$$10^{2}$$)+(5$$\times$$10^{1}$$)+(4$$\times$$10^{0}$$)$