Question: Multiplication of numbers which are near to the factors of bases.
i) 46 x 43 , which is near to 50, and 50 is a factor of 100.
ii) 24 X 23, which is near 20, and 20 is a factor of 100.
iii) 492 X 404, which is near 500, and 500 is a factor of 1000.