Q1) \(∆ -4 = 6 \) [ , \(∆ = 10\)]

Q1) \(9∆ = 81 \) [ , \(∆ = 9\)]

Q1) \( {∆\over9}+7 = 10 \) [ , \(∆ = 27\)]

Q2) \(∆ -2 = 6 \) [ , \(∆ = 8\)]

Q2) \( □ \over 6 \) \(=2 \) [ , \(□ = 12\)]

Q2) \(5∞ -5 = 20 \) [ , \(∞ = 5\)]

Q3) \(∆ -2 = 8 \) [ , \(∆ = 10\)]

Q3) \( ◊ \over 2 \) \(=6 \) [ , \(◊ = 12\)]

Q3) \( {⌂\over7}-5 = 5 \) [ , \(⌂ = 70\)]

Q4) \(⌂ -2 = 5 \) [ , \(⌂ = 7\)]

Q4) \( □ \over 2 \) \(=9 \) [ , \(□ = 18\)]

Q4) \(2□ -7 = 5 \) [ , \(□ = 6\)]

Q5) \(◊ -6 = 1 \) [ , \(◊ = 7\)]

Q5) \(5∞ = 20 \) [ , \(∞ = 4\)]

Q5) \( {⌂\over6}+5 = 8 \) [ , \(⌂ = 18\)]

Q6) \(◊ + 7 = 9 \) [ , \(◊ = 2\)]

Q6) \(3∆ = 24 \) [ , \(∆ = 8\)]

Q6) \(5∞ + 2 = 47 \) [ , \(∞ = 9\)]

Q7) \(⌂ + 8 = 18 \) [ , \(⌂ = 10\)]

Q7) \(8◊ = 16 \) [ , \(◊ = 2\)]

Q7) \(4∆ -5 = 15 \) [ , \(∆ = 5\)]

Q8) \(◊ -7 = 2 \) [ , \(◊ = 9\)]

Q8) \( ◊ \over 2 \) \(=8 \) [ , \(◊ = 16\)]

Q8) \(9∆ + 5 = 41 \) [ , \(∆ = 4\)]

Q9) \(□ + 5 = 7 \) [ , \(□ = 2\)]

Q9) \( □ \over 4 \) \(=2 \) [ , \(□ = 8\)]

Q9) \(4∆ + 10 = 22 \) [ , \(∆ = 3\)]

Q10) \(⌂ -3 = 2 \) [ , \(⌂ = 5\)]

Q10) \( ∞ \over 3 \) \(=2 \) [ , \(∞ = 6\)]

Q10) \(7⌂ -5 = 51 \) [ , \(⌂ = 8\)]