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:
All natural numbers are _________
Fill in the blank:
332 + 497 = ______ + 332
Fill in the blank:
286 + 0 = ______
By re-arranging the given numbers evaluate :
21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
Fill in the blank :
229 x ________ = 578 x 229
Complete the following magic squares:
| 6 | 7 | _______ |
| _______ | 5 | 9 |
| 8 | _______ | 4 |
Fill in the blank:
0 + 987 = ……….
Natural numbers are closed under addition.
There is a natural number which when added to a natural number, gives the number itself.
The smallest natural number is zero.
