CrossMath – 200 Math Crossword Puzzles for Adults: Mixing Addition, Subtraction, Multiplication & Division

CrossMath Focused – 4: Division Puzzles for Kids: Challenging Math Crosswords to Build Division Confidence (Math Mastery Through Fun Puzzles for Kids)

CrossMath Decimals – Vol 2 of 3: 200 Math Crossword Puzzles for Adults – Mixed Decimals (+ – × ÷) (CrossMath Decimals — Beyond Integers, Beyond Ordinary - Math Crossword Puzzles for Adults)

CrossMath Focused – 1: Addition Puzzles for Kids: Fun Math Crosswords to Master Adding Numbers (Math Mastery Through Fun Puzzles for Kids)

CrossMath Decimals – Vol 3 of 3: 200 Math Crossword Puzzles for Adults – Longer Equations with All Operations and Decimals (CrossMath Decimals — ... ... Ordinary - Math Crossword Puzzles for Adults)