Learning Math is a Snap! Engage students of various abilities in addition and subtraction operations, including multiple - step equations, and beginning algebra using colorful, hands - on Math Rods that snap together securely and clarify abstract mathematical concepts. Use durable plastic rods with Activity Cards for individual practice or center activities. Addition and Subtraction Kit contains 198 Math Rods, including 85 numeral rods, 28 operation rods (=, +, - ) and 85 rods featuring whole equations. Also includes 16 double - sided Activity Cards and Teacher's Guide. Packaged in a convenient and sturdy storage tub.