Add and Subtract Within 100: Practice 73

🌍 Where you'd use this: Every time you check the score, count change, or figure out how long until something — that's this.

🤯 Fun fact: 🤯 Multiplication is just addition that got tired of writing things out.

🏆 Try this week: At dinner, calculate everyone's meal in your head before the receipt comes.

👨‍👩‍👧 At dinner: “What's the fastest way you can think of to solve 27 + 18? No paper.”