Standard Algorithm
Set this problem up in standard algorithm: 123 - 117
123
- 117
What are the different place values on our place value chart?
ones, tens, hundreds
What does it mean to subtract?
take away
45 + 28
73
Set this problem up in standard algorithm: 273 - 98
- 98
95 - 42
53
What does unbundling mean?
breaking apart a unit
52 + 27
79
123 - 48
75
200 - 8
192
Describe place value.
132 + 24
156
256 - 57
199
181 - 63
118
What does it mean to analyze something?
examine something carefully
449