Journal for Research in Mathematics Education, Vol. 40, No. 3 (May, 2009), pp. 282-313 (32 pages) Solving arithmetic and algebraic word problems is a key component of the Singapore elementary ...

When you add, subtract, multiply or divide mass in grams and kilograms, sometimes you need to convert the measurements so that they are in the same unit. To convert from kilograms to grams you ...