A. 6−3×2=9 After interchanges 3×6−2=9 This is incorrect as L.H.S =16 B. 6×3−4=15 After interchanges 3−6×4=15 This is incorrect as L.H.S =−21 C. 3×6−4=33 After interchanges 6−3×4=33 This is incorrect as L.H.S =−6 D. 3−6×8=10 After interchanges 6×3−8=10 This correct as L.H.S. = R.H.S. =10