Math Rush: 足し算と引き算 | 協力型時間制教育数学フラッシュカード | 暗算スキルを習得するSTEMゲーム

My kids actually ask to play this, which says a lot. Since it's cooperative, my 9-year-old and 12-year-old can play together without the younger one feeling crushed, and the addition and subtraction cards scale fine for both. Fifteen minutes is the perfect length for a weeknight.

The timer really makes this one tense in the best way, we were all yelling out answers trying to beat it together instead of against each other. Played with my 9 year old and my husband, and the 15 minute rounds fly by. Subtraction facts that used to stump her are getting faster every game.

My kids argue over who gets to play the 1-5 player cooperative mode first, and I love that it forces them to sequence their addition and subtraction answers under the 15-minute timer. The real-time pressure actually makes mental math feel like a game instead of a chore.