Models & Strategies · Grade 4
Decimals: Six Ways to Add & Subtract
One problem, 2.45 + 1.8 = 4.25, worked six ways, from the strategies that build the most understanding to the ones that are fastest.
seen one of these on a test? See it on a real question: TEKS 4.4A, adding and subtracting decimals, or TEKS 4.2G, decimals and fractions that mean the same thing.