Dividing with Base Ten Blocks – Part II

1. Dividing with Base Ten Blocks – Part II

2. 221 is 2 flats, 2 longs, and 1 unit. There are no 3’s in 2 flats, so exchange the 2 flats for 20 longs. I now have 22 longs and 1 unit. 3 221 Ex # 3221  3Finding how many subsets – repeated subtraction

3. Make groups of 3 longs. I have 7 groups of 3 longs and 1 long and 1 unit remaining. 7 3 221 21 1 Ex # 3221  3Finding how many subsets – repeated subtraction

4. Exchange the 1 remaining long for 10 units. I now have 7 groups of 3 longs and 11 units. 7 3 221 21 11 Ex # 3221  3Finding how many subsets – repeated subtraction

5. Make groups of 3 units. I now have 7 groups of 3 longs and 3 groups of 3 units and 2 units remaining. 221  3 = 73 r 2 73 3 221 21 11 9 2 Ex # 3221  3Finding how many subsets – repeated subtraction

6. 221 is 2 flats, 2 longs, and 1 unit. I want to share the pieces equally among 3 groups. I can’t share the 2 flats with 3 groups, so I exchange the 2 flats for 20 longs. I now have 22 longs and 1 unit. 3 221 Ex # 4221  3Finding how many in each subset – sharing

7. Give each group an equal number of longs. Each group has 7 longs and there is 1 long and 1 unit remaining. 7 3 221 21 1 Ex # 4221  3Finding how many in each subset – sharing

8. Exchange the 1 remaining long for 10 units. I now have 11 units remaining to be distributed. 7 3 221 21 11 Ex # 4221  3Finding how many in each subset – sharing

9. Give each group an equal number of units. Now each group has 7 longs and 3 units and there are 2 units remaining. 221  3 = 73 r 2 73 3 221 21 11 9 2 Ex # 4221  3Finding how many in each subset – sharing