Skip counting by 100s interactive worksheet - Free Printable

Let's solve each problem step by step. The task is to skip count by 100s, meaning we add 100 to the previous number each time.

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1. Count by 100's

Given:
100, ____, 300, ____, ____, ____

We start at 100 and add 100 each time:

- 100 → 200 → 300 → 400 → 500 → 600

So the completed sequence is:
100, 200, 300, 400, 500, 600

✔ Answer: 200, 400, 500, 600

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2. Count by 100's

Given:
225, 325, ____, ____, ____, ____

Add 100 each time:

- 225 → 325 → 425 → 525 → 625 → 725

✔ Answer: 425, 525, 625, 725

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3. Count by 100's

Given:
____, 500, ____, ____, ____, 900

We know that:
- 500 is the second number.
- So the first number must be 500 - 100 = 400
- Then: 400, 500, 600, 700, 800, 900

✔ Answer: 400, 600, 700, 800

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4. Count by 100's

Given:
70, ____, ____, 370, ____, 570

Let’s check the pattern:

We are adding 100 each time.

Start with 70:
- 70 → 170 → 270 → 370 → 470 → 570

So the missing numbers are:
- After 70: 170
- Then: 270
- After 370: 470

✔ Answer: 170, 270, 470

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5. Count by 100's

Given:
____, 640, ____, ____, 340, ____

Wait — this one seems backwards because the numbers go from 640 to 340.

Let’s analyze:

If we're counting by 100s, and we see:
- 640 → then next should be 540 → 440 → 340

But in the sequence:
__ , 640, __, __, 340, __

So:
- Before 640: 640 - 100 = 540
- Then: 640, 540, 440, 340, 240

Wait — but the order is:
Position: 1 | 2 | 3 | 4 | 5 | 6
Numbers: ?, 640, ?, ?, 340, ?

So:
- Position 2: 640
- Position 5: 340

That means we’re going down by 100s.

From 640 to 340 in 3 steps (positions 2 to 5), so:

- 640 → 540 → 440 → 340

So:
- Position 1: 640 + 100 = 740
- Position 2: 640
- Position 3: 540
- Position 4: 440
- Position 5: 340
- Position 6: 240

✔ Answer: 740, 540, 440, 240

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✔ Final Answers:

1. 200, 400, 500, 600
2. 425, 525, 625, 725
3. 400, 600, 700, 800
4. 170, 270, 470
5. 740, 540, 440, 240

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✔️ Score: 5/5

All problems solved correctly!