Răspuns:
2+(5³)⁴×5³⁰÷5⁴⁰+3⁵×3⁸÷3¹⁰-6²= 2+5¹²×5³⁰÷5⁴⁰+3¹³÷3¹⁰-6²= 2+5²+3³-36=2+25+27-36=54-36=18
{[(4³-8²)×3+3²]⁶÷3⁸+19}÷10²=(3¹²÷3⁸+19)÷100=(3⁴+19)÷100= (81+19)÷100= 100÷100=1
[(13×2⁴)²÷2⁷-18²]÷2×7⁹÷(6¹+1⁶)⁸= (169×2⁸÷2⁷-324)÷2×7⁹÷7⁸= (169×2-324)÷2×7=14÷14= 1