66066 + 6606 + 66 + 6 = 72744
Let 9501 - x = 3697
Then x = 9501 - 3697
= 5804
Let x - 4799 = 1714
Then, x = 4799 + 1714
= 6513.
36800 - 9999 - 3333 - 66 = 36800 - ( 9999 - 3333 - 66)
= 36800 - 13398
= 23402
Let 3571 + x - 6086 = 115
Then, x = 6086 +115 -3571
= 6201-3571
= 2630
Let x + 6207 - 9038 = 107
Then x = (107 +9038) - (6207)
= 2938
The face value of 8 in 458926 is 8
The local value of 7 in 5679032 is 70000.
Let y x 48 = 173 x 240
Then y = (173 x 240) / 48
=173 x 5
= 865 .
106 x 106 + 94 x 94 =(106)2 + (94)2
=1/2 [2(a2 + b2)]
=1/2 [(a+b)2 + (a-b)2]
=1/2 [(106 + 94)2 + (106 -94 )2]
=1/2 [ (200)2 + (12)2]
= 1/2 x [ 40000 + 144 ]
= 40144/2
= 20072 .
5358 x 51 = 5358 x (50 +1 )
5358 x 50 + 5358 x 1
=267900 + 5358 = 273258
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