dividing with base ten blocks
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Dividing with Base Ten Blocks. Ex # 1 23 3 Finding how many subsets – repeated subtraction. 23 is 2 longs and 3 units. There are no 3’s in 2 longs, so exchange the 2 longs for 20 units. Ex # 1 23 3 Finding how many subsets – repeated subtraction. I now have 23 units. - PowerPoint PPT PresentationTRANSCRIPT
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Dividing with Base Ten Blocks
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Ex # 1 23 3Finding how many subsets – repeated subtraction
• 23 is 2 longs and 3 units.
• There are no 3’s in 2 longs, so exchange the 2 longs for 20 units.
![Page 3: Dividing with Base Ten Blocks](https://reader035.vdocuments.net/reader035/viewer/2022062218/5681627b550346895dd2e9bf/html5/thumbnails/3.jpg)
Ex # 1 23 3Finding how many subsets – repeated subtraction
• I now have 23 units.
![Page 4: Dividing with Base Ten Blocks](https://reader035.vdocuments.net/reader035/viewer/2022062218/5681627b550346895dd2e9bf/html5/thumbnails/4.jpg)
Ex # 1 23 3Finding how many subsets – repeated subtraction
• Make groups of 3 units.
• I have 7 groups of 3 units with 2 units left over.
• 23 3 = 7 r 2
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Ex # 2 23 3Finding how many in each subset – sharing
• 23 is 2 longs and 3 units.
• I want to share the pieces equally among 3 groups.
• I can’t share the 2 longs with 3 groups, so I exchange the 2 longs for 20 units.
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Ex # 2 23 3Finding how many in each subset – sharing
• I now have 23 units.
• Give each group 1 unit.
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Ex # 2 23 3Finding how many in each subset – sharing
• Give each group a 2nd unit.
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Ex # 2 23 3Finding how many in each subset – sharing
• Give each group a 3rd unit.
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Ex # 2 23 3Finding how many in each subset – sharing
• Continue this until all the units are given out.
• Each group has 7 units and there are 2 units left over.
• 23 3 = 7 r 2
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Ex # 3 221 3Finding how many subsets – repeated subtraction
• 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.
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Ex # 3 221 3Finding how many subsets – repeated subtraction
• I now have 22 longs and 1 unit.
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Ex # 3 221 3Finding how many subsets – repeated subtraction
• Make groups of 3 longs.
• I have 7 groups of 3 longs and 1 long and 1 unit remaining.
• Exchange the 1 remaining long for 10 units.
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Ex # 3 221 3Finding how many subsets – repeated subtraction
• I now have 7 groups of 3 longs and 11 units.
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Ex # 3 221 3Finding how many subsets – repeated subtraction
• 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
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Ex # 4 221 3Finding how many in each subset – sharing
• 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.
![Page 16: Dividing with Base Ten Blocks](https://reader035.vdocuments.net/reader035/viewer/2022062218/5681627b550346895dd2e9bf/html5/thumbnails/16.jpg)
Ex # 4 221 3Finding how many in each subset – sharing
• I now have 22 longs and 1 unit.
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Ex # 4 221 3Finding how many in each subset – sharing
• Give each group an equal number of longs.
• Each group has 7 longs and there is 1 long and 1 unit remaining.
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Ex # 4 221 3Finding how many in each subset – sharing
• Exchange the 1 remaining long for 10 units.
• I now have 11 units remaining to be distributed.
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Ex # 4 221 3Finding how many in each subset – sharing
• 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