Using Multiples to Divide
723
÷
(dividend)
38
38
(divisor)
723
(dividend)
(divisor)
1. Write the problem on your paper and draw a line along the
right side of the problem.
38 723
2. Choose a familiar/friendly number to multiply the divisor by
and multiply the two numbers.
38
723
380
38 x 10 = 380
10
3. Subtract the number you found when multiplying the divisor
and your friendly number from the original dividend.
38
723
-380
343
10
4. Looking at the number left after subtracting, determine the
next friendly number to multiply by the divisor. Multiply the two
numbers.
38 723
-380 10
343
190
5
38 x 5 = 190
5. Subtract
38
723
-380 10
343
-190
5
153
6. Looking at the number left, determine the next friendly
number to multiply by the divisor. Multiply the two numbers.
** In this example we know our next friendly number must be
smaller than 5 since 38 x 5 = 190, and there is only 153 left.
38
7. Subtract
38
723
-380
343
-190
153
76
723
-380
343
-190
153
-76
77
10
5
38 X 2 = 76
2
10
5
2
8. Looking at the number, determine the next friendly number to
multiply. Multiply the two numbers. Subtract.
** In this example we know that 38 x 2 = 76 which is one
smaller than 77. This would make 2 a good choice for our next
friendly number.
38
723
-380 10
343
-190
5
153
-76
2
77
-76
2
1 (remainder)
38 x 2 = 76
9. When the number left is less than the divisor, that number
becomes the remainder.
10. Add the friendly numbers along the right side of the column
to get the answer (quotient). Be sure to include your remainder
in the answer.
38
723
-380 10
343
-190
5
153
-76
2
77
-76
2
1 (remainder)
11. The quotient (final answer) is 19 r1
10
5
2
+2
19