4th 5th 6th Grade fun end of the year math review activities puzzle packets! Percents, fractions, and decimals review worksheets ( 19 fun secret codebreaker type puzzles activities for math centers or fast / early finishers activities). Includes Simplifying, Equivalents, Fractions of Sets, Mixed Numbers, Improper, Ordering Decimals, Four Operations, Decimal and Fraction Equivalents of Percentages, Percents of a Number, Percentage Increases and Decreases. No prep printable crack the secret code /