Homework+helps

Homework helps subtracting 2 digit number using a line jumping back || subtracting 2 digit number using a line jumping up || subtracting 3 digit number using a line jumping back || subtracting 3 digit number using a line jumping back || subtracting 3 digit numbers vertically || subtracting decimals on a line || subtracting decimals vertically ||  || adding 2 digit numbers on a number line || adding 2 digit numbers vertically || adding 3 digit numbers vertically || addin decimals on a number line || adding decimals vertically ||  ||   ||   || multiplication grid method 2 digit by 1 digit || multiplication grid method 2 digit by 2 digits || multiplication grid method 2 digit by 3 digits || multiplication grid method decimals || division by chunking by counting on on a number line 2 digits by one digit || division by chunking by counting on on a number line 3 digits by two digits || division by partitioning 2 digits by 1 digit ||  || chunking 2 digits by 1 digit vertically || chunking 3 digits by 2 digits vertically || chunking 3 digits by 2 digits vertically ||  ||
 * [[file:-2d2donlineback.doc]]
 * [[file:-3d3dvert.doc]]
 * [[file:+2d2dnoline.doc]]
 * [[file:+decvert.doc]]
 * [[file:grid2d1d.doc]]
 * [[file:chunk2d1dnolinecount_on_aug2005-2.doc]]
 * [[file:chunk2d1dvert.doc]]