Let’s Talk Math Strategies
My second-grade students are asked to fluently add and subtract within 100 when using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction per CCSS 2 NBT.5. Was that a mouthful? It’s a lot of words to explain how one can use different place value strategies when adding and subtracting two-and-three-digit numbers. This approach is a big departure from the kind of math I was taught when I was my students’ age.