GRADE 4
 Describe and use strategies to:
 add and subtract twodigit numbers
 multiply to 10 × 10
 divide to 100 ÷ 10
 multiply whole numbers by 10, 100,
 and 1000, and divide by 10 and 100
 round fourdigit numbers to the nearest ten, hundred, and thousand
 estimate addition, subtraction, and multiplication of whole numbers
– Focusing on the Fundamentals of Math – A Teacher’s Guide, p.6
Text Resources
This curated list of documents have been selected to help you gain a deeper understanding of the above selection from “Focusing on the Fundamentals of Math – A Teachers Guide”. Each link will take you directly to the relevant section within the document.
A Guide to Effective Instruction in Mathematics 46, Number Sense and Numeration, Vol 2, Addition and Subtraction 

A Guide to Effective Instruction in Mathematics 46, Number Sense and Numeration, Vol 3, Multiplication 

A Guide to Effective Instruction in Mathematics 46, Number Sense and Numeration, Vol 4, Division 

Learning Mathematics vs Following “Rules”: The Value of StudentGenerated Methods 

Paying Attention to Spatial Reasoning 