For the following questions answer them individually
22% of ? + 166.64 = 340
$$84 \div 12 \div 0.8 =$$ ?
$$(16) \times 4 \div 1024 = 1 : ?^2$$
$$12.5 \times 3.2 \times 8.8 = $$?
$$\sqrt{1764} + 22 = \sqrt{?}$$
$$7777 \div 35 = $$ ?
$$ 5220 \div ? \times 15 = 2175$$
54671 - 14456 - 33466 = ?
18% of 680 - ? = 68.7
$$25631 + 1442 - 3229 = ? \times 50$$