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प्रश्न
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
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उत्तर
(188)2 = (200 − 12)2
= (200)2 + (12)2 − 2(200) (12)
= 40000 + 144 − 4800
= 40144 − 4800
= 35344
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संबंधित प्रश्न
Expand : (a – 2b)2
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(92)2
Write the place name and place value of digit in the following number.
7,82,899
The expanded form of the number is given. Write the number.
9,00,000 + 20,000 + 7000 + 800 + 5
The expanded form of the number is given. Write the number.
20,00,000 + 3,00,000 + 60,000 + 9000 + 500 + 10 + 7
The expanded form of the number is given. Write the number.
7,00,000 + 80,000 + 4000 + 500
The expanded form of the number is given. Write the number.
80,00,000 + 50,000 + 1000 + 600 + 9
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 in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones
