Three students found the value of . Their work is shown. Explain how each method works.
Tyler’s drawing
Lin’s method
Han’s method
Activity 2
Try using an algorithm to find the value of each sum. Show your thinking. Organize it so it can be followed by others.
Standards Alignment
Building On
Addressing
3.NBT.2
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.
Fluently add and subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.