Lesson 13 of 84 · Subtraction Facts to 20
easy⭐ 30 XP🥊 Number ArenaSubtraction Facts to 20: 4 - 0
In this Grade 1 lesson on Subtraction Facts to 20, you will practice solving problems like: "What is 4 - 0?". 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.
Worked Examples
Next Smart Lesson
We'll pick a lesson that matches exactly where your math is right now.
✨More to explore
🌍 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: 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.”
Challenge a friend
Send it to a parent looking for a 5-minute math win that doesn't feel like homework.
Ready?
Subtraction Facts to 20: 4 - 0
Crunch the numbers. Beat your old time.
Full screen — no distractions
Checkout complete lesson on Subtraction Facts to 20 for 1st Grade
Get the full Subtraction Facts to 20 track as a printable PDF — all lessons, worksheets, and answer keys.