Lesson 26 of 84 · Subtraction Facts to 20
medium⭐ 30 XP🥊 Number ArenaSubtraction Facts to 20: Practice 26
In this Grade 1 lesson on Subtraction Facts to 20, you will practice solving problems like: "Mason has 12 cards. Mason gives away 3. How many cards are left?". Work through each problem carefully, use the hints if you need help, and check your answers. This builds your understanding of subtraction facts to 20 step by step.
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🌍 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: 🤯 The number 0 is younger than you think. People did math for thousands of years before they invented zero.
🏆 Try this week: Time yourself on 10 mental math problems before bed for 5 days. Track your speed.
👨👩👧 At dinner: “What's the fastest way you can think of to solve 27 + 18? No paper.”
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Send it to a parent looking for a 5-minute math win that doesn't feel like homework.
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