Help children develop mental calculation and counting with Roll A Sum dice. Simply roll the dice and let the numbers guide your counting. Firstly roll the dice and look at the upper face, then group the dice together that are related. Choose the dice you want to use and the best dice to start your sum. A collection of ten number dice for generating sums and number patterns. Color-coded so that each theme or concepts is presented in its own color. Includes: place value ones to hundreds, ten frames and equations. Comes with a handy carry bag. Play as a game for one or more players.Details:8" x 6" x 1"Contains 10 dice and 1 carry sackFor ages 4 and up