Marilyn Burns Math; Mental Math| Decimal Word Problem
Student mentally solves this word problem: How much do 10 pens cost if each costs $1.39? How does she reason?
Read about this in my blog: http://www.marilynburnsmathblog.com/w...
Student mentally solves this word problem: How much do 10 pens cost if each costs $1.39? How does she reason?
Read about this in my blog: http://www.marilynburnsmathblog.com/w...