Percent Applications, Increase, Decrease, and Reverse Percent

Percent Applications, Increase, Decrease, and Reverse Percent practice with teacher guidance, common slips, and next-step routes.

Core · Percent Applications, Increase, Decrease, and Reverse Percent · Independent practice · Scalar Entry

Watch: Watch whether the learner enters 1.8 kg and stops. That response shows they found the unchanged paper-fibre mass but did not use it as 2% of the final whole.

Misread: A response of 176.4 kg treats 98% as a percentage of the starting 180 kg; 180 kg keeps the whole unchanged; 88.2 kg names final water, not total mass.

Curriculum: This task uses percent complements and a conserved component to reconstruct a new whole. The scored skill is entering the exact final mass from two state-specific composition percentages.