In this excerpt from an upcoming math workbook, your junior detective will make a positive ID on obtuse, acute and right angles.

Take brain teasers to the next level with this extra-challenging magic square puzzle that features decimals!

Find out what fills a room, but takes up no space, with this riddle and math combo worksheet. Use subtraction skills to solve the riddle on this math worksheet.

Kids hunt for clues about a character's traits with this worksheet.