... Match-Up, 194 – 195 ; Fraction Cover-Up or Un-Cover, 43–46;Here I Am, 1 89 193 ; IHave,WhoHas ?,182–185; Number Grids, 186–188; Paper ClipDivision, 1 79 181; Post-it Mental Math, 47– 49, 95 ;Post-it ... factorization, 1 29 130Prime numbers, 1 29 130Probability, 128–131Problem Puzzlers, 2 09, 392 – 396 ; carpet puzzle, 393 ; horsetrading puzzle, 394 ; instructions, 392 – 394 ; jars to fillpuzzle, 394 ; Johnson’s ... 47–48Post-it Statistics, 294 – 296 ; example, 295 ; instructions, 294 – 295 Postal Problem, A, 297 –300; box shape, 300; box size, 300;example, 298 – 299 ; instructions, 297 – 298 ; limit ongirth, determining,...