Subtraction Tuesday!!!
Designed to be done in head. Encourage students to see patterns.
17 - 10 =
170 - 100 =
|
27 - 10 =
470 - [ ] = 370
|
Change of strategy this week
Actually more of a knowledge focus I guess. Looking at take away of 10 and 100. This will build to rounding and compensating next week for taking away 9 (or other numbers close to tidy number)
Additional questions:
Can you write down instructions for taking away 10 from any number so that someone else could under stand it?
Can you write down instructions for taking away 100 from any number so that someone else can understand it.
for_kids_to_look_at.docx | |
File Size: | 199 kb |
File Type: | docx |