Round off the larger number to 100 to make the calculations simpler and we would have 100*97 (98*97). After we round off the larger number, we would have 2*97 as the 2 comes from 100 - 98 (The larger number). Hence, the equation would be: 100*97 - 2*97 (The minus comes from the fact that 2 comes from 100-98) = 9506

98*97= 100*97 - 2*97

ReplyDelete= 9700-194

90x90=81

ReplyDelete8x7=56

810+56=866

Round off 98 as it is nearer to 100.

ReplyDeleteNow the statement is 100 * 97 which is 9700.

Then we need to minus of 2 * 97.

To do that, I would -

2 * 100 = 200.

Then the number is now 9500.

100 - 97 = 3.

2 * 3 = 6.

9500 + 6 = 9506.

98 * 97 is equal to 9506

Round off the larger number to 100 to make the calculations simpler and we would have 100*97 (98*97). After we round off the larger number, we would have 2*97 as the 2 comes from 100 - 98 (The larger number).

ReplyDeleteHence, the equation would be:

100*97 - 2*97 (The minus comes from the fact that 2 comes from 100-98) = 9506