Count back & use the relationship between addition and subtraction to subtract within 20. Warm up with a Mystery Math Mistake to find the error in DC's addition. Use ...
Addition & subtraction strategies to solve two-digit equations using an open number line. In this lesson, students practice using different addition and subtraction strategies to solve two-digit ...
You can add or subtract numbers in lots of different ways. You can use number lines, number bonds, fact families, 10 squares and counters, or even just writing the numbers down. Sometimes it is faster ...
The opinions expressed in Inspired Instruction: Videos From the Teaching Channel are strictly those of the author(s) and do not reflect the opinions or endorsement of Editorial Projects in Education, ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results