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प्रश्न
By re-arranging the given numbers evaluate :
21 + 22 + 23 + 24 + 25 + 75 + 76 + 77 + 78 + 79
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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
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संबंधित प्रश्न
Fill in the blank:
Largest natural number is _________
Fill in the blank:
54 + 234 = 234 + ______
By re-arranging the given numbers evaluate :
162 + 253 +338 + 47
Which property of addition is satisfied by :
8 + 7 = 15
State True or False:
Every whole number x 1 = The whole number itself.
12 x (9 – 6) = _______ = ________
12 x 9 – 12 x 6 = ________ = _________
Is 12 x (9 – 6) = 12 x 9 – 12 x 6 ? _______
Is this type of result always true ? ______
Name the property used here _______
Fill in the blank :
229 x ________ = 578 x 229
Evaluate using properties :
333 x 987 + 13 x 3333
LCM of 10, 15 and 20 is ______.
The smallest 6 digit natural number ending in 5 is ______.
