Advertisements
Advertisements
प्रश्न
By re-arranging the given numbers evaluate :
1 + 2 + 3 + 4 + 596 + 597 + 598 + 599
Advertisements
उत्तर
21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
= (21 + 79) + (22 + 78) + (23 + 77) + (24 + 76) + (25 + 75) (by associative law)
= 100 + 100+ 100+ 100 + 100 = 500
Notes
1 + 2 + 3 + 4 + 596 + 597 + 598 + 599
= (1 + 599) + (2 + 598) + (3 + 597) + (4 + 596) (By associative law)
= 600 + 600 + 600 + 600 = 2400
APPEARS IN
संबंधित प्रश्न
Fill in the blank:
Smallest natural number is _________
Fill in the blank:
Largest natural number is _________
State true or false:
0 + 18= 18 + 0
Fill in the blank:
286 + 0 = ______
Which property of addition is satisfied by :
(7 + 6) x 10 = 7 x 10 + 6 x 10
Evaluate using properties :
924 x 988
Fill in the blank:
0 + 987 = ……….
Two numbers having only 1 as a common factor are called _____ numbers.
Number of primes between 1 to 100 is ______.
To ensure the result is an odd natural number, n (a natural number) must be used in which form?
