Question 2 (v)
Find: −219−6
−219−6=−199−61=−19×19×1−6×91×9 [L.C.M of 9 and 1 is 9] =−199−549=−19−549=−739=−819
Question 6 (i)
Which of the following pairs represent the same rational numbers: −721 and 39
Question 2 (ii)
Find: 563−(−621)