ffirs.indd

Standard Long Division Made Easy 151
We bring down the next digit of the number we are dividing and
write an X beneath to remind us the digit has been used.
4
29 12345
116X
74
We now divide 74 by 29.
We divide 74 by 10 to get 7 (we just drop the last digit to get an
approximate answer), and then divide by 3. Th ree divides into 7
twice, so 2 is the next digit of our answer.
Multiply 2 by 29 to get 58 (twice 30 minus 2), and then subtract
from 74. Th e answer is 16. Th en we bring down the 5, writing the
X below.
42
29 12345
116XX
74
58
165
We now divide 165 by 29.
Roughly dividing 169 by 10, we get 16. Sixteen divided by 3 is 5.
Multiply 29 by 5 to get 145. Subtract 145 from 165 for a remainder
of 20.