Area - Challenge 8 - Module 31
Bar Graphs - Challenge 10 - Module 39
Comparing and Adding Decimals - Challenge 11 - Module 45
Divisibility - Challenge 5 - Module 18
Exact or Estimate? - Challenge 2 - Module 8
Lines - Challenge 7 - Module 28
Measuring Units 1 - Challenge 9 - Module 36
Mixed Numbers - Challenge 6 - Module 25
Multiplication Tricks - Challenge 3 - Module 12
Number Families - Challenge 1 - Module 5
Probability - Challenge 12 - Module 47
