Adding 18 Foldable Mini Book — Doubles 9+9 & Addition to 28

A 22-page foldable mini booklet for practicing +18 addition facts. +18 facts tie in the 9+9 doubles fact. Students work two-digit + one-digit sums reaching 28 and build matching subtraction facts through fact families. Activities include word-problem matching, workspace word problems, a true/false equation maze, fast-fact vertical stacks, ten-frame coloring, number-line jumps, fact-family houses (addition and subtraction), number bonds, picture models, turn-around fact pairs, fact-to-sum matching, an equation search, spinner and roll-a-die practice, and color-by-code fluency. Includes answer keys for every page. Works well for math centers, small-group intervention, independent practice, and homework.