Q1) \(∆ -4 = 5 \) [ , \(∆ = 9\)]

Q1) \( □ \over 4 \) \(=3 \) [ , \(□ = 12\)]

Q1) \(7⌂ -5 = 51 \) [ , \(⌂ = 8\)]

Q2) \(□ + 7 = 16 \) [ , \(□ = 9\)]

Q2) \(5⌂ = 45 \) [ , \(⌂ = 9\)]

Q2) \( {∞\over6}-5 = 3 \) [ , \(∞ = 48\)]

Q3) \(□ + 5 = 7 \) [ , \(□ = 2\)]

Q3) \( ∆ \over 2 \) \(=10 \) [ , \(∆ = 20\)]

Q3) \(10∞ -7 = 73 \) [ , \(∞ = 8\)]

Q4) \(∞ + 6 = 15 \) [ , \(∞ = 9\)]

Q4) \(9□ = 81 \) [ , \(□ = 9\)]

Q4) \( {∞\over6}-3 = 7 \) [ , \(∞ = 60\)]

Q5) \(⌂ + 3 = 5 \) [ , \(⌂ = 2\)]

Q5) \( □ \over 5 \) \(=4 \) [ , \(□ = 20\)]

Q5) \(6∞ + 6 = 24 \) [ , \(∞ = 3\)]

Q6) \(∞ + 2 = 12 \) [ , \(∞ = 10\)]

Q6) \(4◊ = 12 \) [ , \(◊ = 3\)]

Q6) \( {◊\over8}+7 = 16 \) [ , \(◊ = 72\)]

Q7) \(◊ + 8 = 13 \) [ , \(◊ = 5\)]

Q7) \( ∞ \over 3 \) \(=3 \) [ , \(∞ = 9\)]

Q7) \(2□ -7 = 5 \) [ , \(□ = 6\)]

Q8) \(⌂ + 10 = 20 \) [ , \(⌂ = 10\)]

Q8) \(2∞ = 12 \) [ , \(∞ = 6\)]

Q8) \( {◊\over3}+8 = 11 \) [ , \(◊ = 9\)]

Q9) \(⌂ + 9 = 14 \) [ , \(⌂ = 5\)]

Q9) \( ⌂ \over 2 \) \(=9 \) [ , \(⌂ = 18\)]

Q9) \( {∆\over7}+5 = 11 \) [ , \(∆ = 42\)]

Q10) \(⌂ + 6 = 14 \) [ , \(⌂ = 8\)]

Q10) \( ∞ \over 5 \) \(=3 \) [ , \(∞ = 15\)]

Q10) \( {◊\over9}+5 = 8 \) [ , \(◊ = 27\)]