This volume focuses on the place value skills and concepts needed to add and subtract multi-digit numbers with understanding and fluency. More specifically, the collection of resources offered in this volume can be used to provide intervention for students struggling with one of more of the following: Reading, writing, comparing, and understanding 2- and 3-digit numbers Grouping and counting objects by 10s and 1s, or by 100s, 10s, and 1s Counting forward and backward by 10s on and off the decade (200, 210, 220, 230, and so on; 204, 214, 224, 234, and so on) Counting forward and backward by 100s on and off the century (100, 200, 300, and so on; 112, 212, 312, and so on) Mentally adding or subtracting 10 or 100 from any number in the range of 100–900 Developing accurate, effective and efficient strategies for adding and subtracting 2- and 3-digit numbers. For professional preview only.

Professional