Try the monthly challenge September 2018 challenge Subscribe for monthly puzzles Puzzles4’s challenge Arithmetic operators Alphametic ARITH-Maze ARITHMAGON (addition) Can-U-Figure-It-Out Chinese multiplication CIRCLE-Sums CROSS-NUMBERS DARTS Challenge Egyptian arithmetic EQUATE+0,+1,+2 & +3 EQUATE-Sums EQUATE-Takeaways EQUATE-Times Fractions, decimals and %ages HEXAGON-numeric Matchsticks Mind-Xpander Logic Petite CIRCLE-Sums Polygons Prime numbers Relational Roman arithmetic Safety code Scientific / Engineering notation SQUARE-Sums SQUARE-Up STAR-Sums SUM-IT SUM-IT ‘4-sided’ Pyramid X-Sums
