Curated OER
Expanded Form
Explore place value through re-writing these two-digit numbers in expanded form. For example, 47 becomes 40 + 7. There is one example to model this, and scholars complete 14 more on their own. Be sure they understand this process as...
Curated OER
Adding 1s, 10s, 100s, and 1000s
In this addition activity, students complete a 13 row chart where they start with either 3 or 4 digit numbers and add 1, 10, 100, or 1000 to each number to fill in the chart. The last 4 questions require subtraction because the initial...