3rd grade
posted by cortney .
show me a baseten drawing

http://dupratm.ismonline.org/files/2010/10/BaseTenBlocks.bmp

Cindy has 20 ten blocks and 3 ones blocks. What other block does she need to show 213?
posted by cortney .
show me a baseten drawing
http://dupratm.ismonline.org/files/2010/10/BaseTenBlocks.bmp
Cindy has 20 ten blocks and 3 ones blocks. What other block does she need to show 213?