Maths tricks

*Trick for 41²-49²*
41²=16(9²)=1681
42²=17(8²)=1764
43²=18(7²)=1849
44²=19(6²)=1936
45²=20(5²)=2025
46²=21(4²)=2116
47²=22(3²)=2209
48²=23(2²)=2304
49²=24(1²)=2401
Trick for 51²-59² ........
51²=26(1²)=2601
52²=27(2²)=2704
53²=28(3²)=2809
54²=29(4²)=2916
55²=30(5²)=3025
56²=31(6²)=3136
57²=32(7²)=3249
58²=33(8²)=3364
59²=34(9²)=3481