TeachIt Maths; Bounds and Error Intervals (new GCSE) – @dooranran on TES; N15 … Percentage increase and decrease using a multiplier – jenitta on TES; Mixed … Inquiry Maths; Forward and reverse percentages worksheet – awilki9 on TES…. Sep 1, 2017 Showing top 8 worksheets in the category – Rate Of Change 8th Grade. ……