Answer :
(i) We have
69 × 71 = (70 – 1) × (70 + 1)
= (702 – 12)
= 4900 – 1
= 4899
(ii) We have
94 × 106 = (100 – 6) × (100 + 6)
= (1002 – 62)
= 10000 – 36
= 9964
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Goprep Genius Quiz | Squares and Square Roots34 mins
Squaring Using Geometry.43 mins
Finding Square Root of Numbers - I37 mins
RD Sharma | Squares and Square Roots39 mins
Lets learn about Perfect Squares40 mins
Know Shortcuts for Square Root34 mins
Squares of Numbers35 mins
Quiz | Squares and Square Roots41 mins
Champ Quiz | Square and Square roots32 mins
NCERT | Square and Square Roots42 mins
Goprep Genius Quiz | Squares and Square Roots34 minsSquaring Using Geometry.43 minsFinding Square Root of Numbers - I37 minsRD Sharma | Squares and Square Roots39 minsLets learn about Perfect Squares40 minsKnow Shortcuts for Square Root34 minsSquares of Numbers35 minsQuiz | Squares and Square Roots41 minsChamp Quiz | Square and Square roots32 minsNCERT | Square and Square Roots42 minsTry our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
RELATED QUESTIONS :
The square of a p
RS Aggarwal - MathematicsWhich of the foll
RS Aggarwal - MathematicsUsing prime facto
RD Sharma - MathematicsChoose the
RS Aggarwal - MathematicsWhich of the foll
RD Sharma - MathematicsWhat least number
RS Aggarwal - MathematicsWhat least number
RS Aggarwal - MathematicsState whether the
NCERT - Mathematics Exemplar