Number Factory

Build answers one column at a time

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1Choose your job

➕ Pack Boxes
Addition

➖ Unpack Boxes
Subtraction

🔀 Factory Shift
Mixed

2Choose your difficulty

2 digits

3 digits

4 digits

3Choose your mode

🤖 Learn ModeI will guide every step.

✏️ Practice ModeWork independently.

4Choose the number of questions

5 questions

10 questions

15 questions

20 questions

Unlimited

Question 1 of 5

Correct: 0

Addition job

📦 Packing machine

📤 Unpacking machine

Let's get started!

I will help you solve each column.

Enter your answer

Shift complete! 🎉

You kept the Number Factory running.

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