Division of a two digit-number by a one digit number Make four equal groups from 32: 32 = Decompose 10 Can not group it into 4 parts. 32 4
Make four equal groups from 32: 32 4 32 = Decompose 10 Can not group it into 4 parts Further decompose
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 = Decompose
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 = Decompose
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 =
Make four equal groups from 32: 32 4 32 : (30 + 2) 4 30 4 = 7, R 2 = 7 + (2 4)
Make four equal groups from 32: 32 4 32 : (30 + 2) 4 30 4 = 7, R 2 = 7 + (2 4) 2 4 = R 2 = (2 4)
Make four equal groups from 32: 32 4 32 : (30 + 2) 4 30 4 = 7 + (2 4) 2 4 = (2 4) 32 4 = 7 + (2 4) + (2 4) = 7 + [(2+2) 4]
Make four equal groups from 32: 32 4 32 : (30 + 2) 4 32 4 = 7 + [(2+2) 4] = 7 + [4 4] = = 8
Long Division Procedure: 623 = Divide a number from the left (100’s). Any remainder will be added to the next right position (10’s). Divide the number. Any remainder will be added to the next right position (1’s). Divide the Number.
Computation of the answer is quick. Grouping a large number, and adding the remainder to the smaller number is systematic and easy. Making estimate starts with working with the digit on the left (biggest place value). Advantage:
Takes a long time to reach the answer. The method will fail in Algebra to determine series! Frustrating to solve complex word problems in a reasonable amount of time. Disadvantage with the alternative method, such as Everyday Math