What is the remainder when you divide 23 by 2 (so 23/2)?

The correct answer and explanation is:

✅ Correct Answer: 1


➗ Explanation:

When dividing 23 by 2, we are essentially asking:

“How many times does 2 go into 23, and what is left over?”

This is a division with remainder (also called modulus operation in math). Let’s break it down:


🔹 Step-by-Step:

  1. Divide 23 by 2: 23÷2=11 with a remainder23 ÷ 2 = 11 \text{ with a remainder}
  2. Multiply the whole number part back: 2×11=222 × 11 = 22
  3. Subtract from 23: 23−22=123 − 22 = 1

So, the remainder is 1.


💡 Why is this Important?

Division with remainders helps us understand parts of numbers that don’t divide evenly. This concept is especially useful in:

  • Programming (using modulus % operator)
  • Telling time (like dividing hours or minutes)
  • Packaging (e.g., putting 23 apples in bags of 2—you’ll have 1 left over)
  • Math tests involving number patterns, parity (even/odd), and divisibility

🧠 Concept Summary:

  • Any time you divide two integers and they don’t divide evenly, there’s a remainder.
  • The remainder is what’s left over after dividing as many whole times as possible.
  • In this case: 23÷2=11 R 123 ÷ 2 = 11 \text{ R }1
  • This can also be written as: 23mod  2=123 \mod 2 = 1

✅ Final Answer:

The remainder when you divide 23 by 2 is 1.

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