Subtract by “By Addition and By Subtraction” rule.

a     46 – 19 = ———

b     76 – 29 = ———

c     88 – 49 = ———

d     55 – 19 = ———

e     52 – 28 = ———

f      72 – 48 = ———

g     166 – 38 = ———

h     181 – 158 = ———

i      155 – 29 = ———

j      65 – 16 = ———

⇐ Subtracting Near a Base