Try the websites...

Dear pupils,

You may press CTRL+CLICK on the lins below to try the website that i used during teaching last week.

Addition
http://nlvm.usu.edu/en/nav/frames_asid_154_g_1_t_1.html

Subtraction
http://nlvm.usu.edu/en/nav/frames_asid_155_g_1_t_1.html?from=topic_t_1.html

Please note: remember to change the columns into 2 only -tens and ones.

Have fun!!! (",)


Love,
Mdm IrNi