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प्रश्न
Find the square of 391
बेरीज
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उत्तर
(391)2 = (400 − 9)2
= (400)2 + 92 + 2 (400) (9)
= 160000 + 81 − 7200
= 152881
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संबंधित प्रश्न
Expand : (2a + b)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Evaluate using the expansion of (a + b)2 or (a – b)2:
(9.4)2
Find the square of 9.7
Write the following numbers in standard notation.
200000 + 7000 + 7
Write the following numbers in expanded from.
63,570
Represent given values in Abacus.
Write the number name of the following numbers represented in the Abacus
Find the face value and place value of the digits coloured in the given numbers.
8965
Complete the given table.
| Number | Expanded Form | |
| a | 6785 | |
| b | 4000 + 200 + 90 + 6 | |
| c | 3000 + 300 + 20 + 7 | |
| d | 9999 | |
| e | 5000 + 70 + 1 | |
| f | 2934 |
Write in expanded form:
574021
