Step 1 Represent numbers to 100
Step 2 Partition numbers to 100
Step 3 Number line to 100
Step 4 Hundreds
Step 5 Represent numbers to 1,000
Step 6 Partition numbers to 1,000
Step 7 Flexible partitioning of numbers to 1,000
Step 8 Hundreds, tens and ones
Step 9 Find 1, 10 or 100 more or less
Step 10 Number line to 1,000
Step 11 Estimate on a number line to 1,000
Step 12 Compare numbers to 1,000
Step 13 Order numbers to 1,000
Step 14 Count in 50s