Question

Calculati:
$a=95995:73- 15^{2}+ 43*15-2*[39-( 2013^{5} ) ^{0} ]$
$b=4216:136*4+ 67^{12} * 67^{12} : 67^{12} +616:56$
$c=123*19-2010+51*57:9+ 10^{10} * 10^{8} : 10^{16}$

Answer 1

$a=95995:73-15^2+43 \cdot 15-2 \cdot [39-(2013^5)^0] \\ a=1315-225+645-2 \cdot (39-1) \\ a=1315-225+645-2 \cdot 38 \\ a=1315-225+645-76 \\ a=1659$
$b=4216:136 \cdot 4+67^{12} \cdot 67^{12}: 67^{12}+616:56 \\ b=31 \cdot 4+67^{12+12-12}+11 \\ b=124+67^1^2+11 \\ b=135+67^1^2$
$c=123 \cdot 19-2010+51 \cdot 57:9+10^1^0 \cdot 10^8:10^1^6 \\ c=2337-2010+2907:9+10^{10+8-16} \\ c=2337-2010+323+10^2 \\ c=2337-2010+323+100 \\ c=750$