For the following questions answer them individually
$$(47)^{2}-(15)^{2}$$=?
81%of 4915=?
$$25\times43\div5$$=?
$$93+26\times3-51$$=?
$$1682\div58\times?=377$$
$$2.8+28.8+2.88+0.2+0.28$$=?
$$63\times9\times14\div?=98$$
$$11.7\times4.1-5.97$$=?
$$\sqrt{841}+729$$=?
$$7\frac{1}{3}+5\frac{4}{9}-4\frac{4}{9}$$=?