Q.1
Add 24 + 98 using partial sums addition
20 + 90 = 110, 4 + 8 = 12, total: 122
add 4 + 8, carry the 1, add 1 + 2 + 9 = 12, total: 122
4 + 8 = 12, 20 + 90 = 110, total: 112