Advertisements
Advertisements
Question
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(188)2
Advertisements
Solution
(188)2 = (200 − 12)2
= (200)2 + (12)2 − 2(200) (12)
= 40000 + 144 − 4800
= 40144 − 4800
= 35344
APPEARS IN
RELATED QUESTIONS
Find the square of `2"a"-1/"a"`
Evaluate using the expansion of (a + b)2 or (a – b)2 :
(415)2
Find the square of 607
Write the place value of the underlined digit.
78,95,210
Write the place value of the underlined digit.
3,52,749
The expanded form of the number is given. Write the number.
60,000 + 4000 + 600 + 70 + 9
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
Represent given values in Abacus.
Write in standard form: 7 lakhs + 5 thousands + 4 tens + 3 ones
Find the face value and place value of the digits coloured in the given numbers.
9876
