= 8 + 6     (Multiplication first)

= 14

= 8 × 2     (Brackets first)

= 16

= 4 + 9     (Exponent first: 3² = 9)

= 13

= 6 ÷ 2 × 3     (Brackets first: 1 + 2 = 3)

= 3 × 3     (Division then Multiplication, left to right)

= 9

= (8 + 4) × (4) ÷ 2     (Exponent: 2³ = 8; both brackets evaluated)

= 12 × 4 ÷ 2     (Brackets resolved)

= 48 ÷ 2     (Multiplication then Division, left to right)

= 24

= 10 − 4 + 2     (Exponent: 2² = 4; Brackets: 6 ÷ 3 = 2)

= 6 + 2     (Subtraction then Addition, left to right)

= 8

= 5 × (12 − 16) + 3     (Exponent inside brackets: 4² = 16)

= 5 × (−4) + 3     (Brackets resolved)

= −20 + 3     (Multiplication)

= −17

= 2 × (2 + 3)     (Substitute x = 2)

= 2 × 5     (Brackets first)

= 10

= 3² + 4 × 3 − 1     (Substitute x = 3)

= 9 + 12 − 1     (Exponent, then Multiplication)

= 21 − 1     (Addition then Subtraction, left to right)

= 20

= (6 + 2)² ÷ 4     (Substitute x = 6)

= 8² ÷ 4     (Brackets first)

= 64 ÷ 4     (Exponent: 8² = 64)

= 16