Short cut to get squares of numbers from 51 to 59

Short cut to get squares of numbers from 51 to 59

51²  =  5x5 +1   ,  1x1     = 2601

52²  =  5x5 +2   ,  2x2     = 2704

53² =  5x5 +3   ,  3x3     = 2809

54² =  5x5 +4    ,  4x4     = 2916

55² = 5x5 +5    ,  5x5     = 3025

56² = 5x5 +6   ,  6x6     = 3136

57²  =  5x5 +7  ,   7x7     = 3249

58² =  5x5 +8  ,   8x8     = 3364

59² =  5x5 +9  ,   9x9     = 3481