Waldorf ~ grade ~ Math ~ Fractions ~ Butterfly Method ~ add or subtract fractions the butterfly way. Adding the visuals really helps the ideas stick, learn your fractions now and higher math will be much easier!
I have my students underline the place value being rounded too, but I also make them box the number that tells them if the number rounds up or stays the same. 5 or more, raise the score. 4 or less, let it rest.