How to play? ★001-EASY★ Rule #1: Both Person A and Person B throw the dot dice (2 BLACK DICES), after throwing, the winner (A or B) uses the white "ADD , SUBTRACT , MULTIPLY and DIVIDE" dices and 6-sides number dices (#1-6) to set out the calculation questions. Then, answer and repeat. Rule #2: Personal game. The boy/girl or the parents (RECOMMEND) use the dice set to set out the calculation questions, then the boy or girl answers the questions. ★002-NORMAL★ Rule #1: Dual Play or Multiplayer game. Each person uses the white "ADD , SUBTRACT , MULTIPLY and DIVIDE" dices and 10-sides number dices (#0-9) to set out the calculation questions IN TURN. Then, answer and repeat. Rule #2: Personal game. The boy/girl or the parents (RECOMMEND) use the dice set to set out the calculation questions, then the boy or girl answers the questions. ★003-HARD★ Rule #1: Dual Play or Multiplayer game. Each person uses the white “ADD , SUBTRACT , MULTIPLY and DIVIDE” dices and 12-sides number dices (#1-12) to set out the calculation questions IN TURN. Then, answer and repeat. Rule #2: Personal game. The boy/girl or the parents (RECOMMEND) use the dice set to set out the calculation questions, then the boy or girl answers the questions. ★004-PROFESSIONAL★ Rule #1: Dual Play or Multiplayer game. Each person uses the white “ADD , SUBTRACT , MULTIPLY and DIVIDE” dices and 20-sides number dices (#1-20) to set out the calculation questions IN TURN. Then, answer and repeat. Rule #2: Personal game. The boy/girl or the parents (RECOMMEND) use the dice set to set out the calculation questions, then the boy or girl answers the questions. ★005-DIY-EXPERTS★ How to play? Please see the USER MANUAL image.