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Counting by 1s 100-1000 Worksheets Grades 1-3 - Free Printable

Counting by 1s 100-1000 Worksheets Grades 1-3

Educational worksheet: Counting by 1s 100-1000 Worksheets Grades 1-3. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: Counting by 1s 100-1000 Worksheets Grades 1-3
Let’s solve each part step by step.

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Part 1: Complete the counting by 1’s chart (300 to 400)

This is a grid where numbers increase by 1 as you go right, and by 10 as you go down. Let’s fill in missing numbers based on that pattern.

We’ll go row by row:

Row 1:
Starts at 300 → next should be 301, 302, 303, 304, 305, then 306 (given), so after 306: 307, 308, 309, 310
→ Row 1: 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310

Wait — let’s check how many columns there are. Looking at the grid, it has 11 columns? Actually, looking again — from 300 to 310 is 11 numbers? But 300 to 309 is 10 numbers. Let me count the boxes.

Actually, looking at the given numbers:

First row: 300 _ _ _ _ 306 _ _ _ _ → that’s 11 boxes? Wait, no — let's list positions:

Assume each row has 10 numbers? But 300 to 309 is 10 numbers. Then next row starts at 310? But second row starts with 311. Hmm.

Wait — look at second row: 311 _ _ _ 316 _ _ _ _ 321 → so from 311 to 321 is 11 numbers? That doesn’t make sense.

Actually, let’s think differently. The chart likely goes from 300 to 409, arranged in rows of 10 or 11? Let’s use the given numbers to figure out the pattern.

Look at vertical alignment:

Column 1: 300, 311, _, _, _, 355, _, 377, _, _

From 300 to 311 is +11? That can’t be for counting by 1s.

Wait — maybe it’s not aligned vertically by tens? Let’s try horizontal first.

In row 1: 300, then blank, blank, blank, blank, 306 → so between 300 and 306 is 5 steps → so positions:

Pos1: 300
Pos2: 301
Pos3: 302
Pos4: 303
Pos5: 304
Pos6: 305
Pos7: 306 ← given
Then Pos8: 307
Pos9: 308
Pos10: 309
Pos11: 310? But next row starts with 311.

Ah! So each row has 11 numbers? From 300 to 310 is 11 numbers (inclusive). Then next row starts at 311.

Check: 300 to 310 = 11 numbers
311 to 321 = 11 numbers
Yes — because 321 - 311 = 10, but inclusive is 11 numbers.

So each row has 11 numbers, increasing by 1 left to right, and each new row starts 11 more than previous row start? No — 300 to 311 is +11, yes.

But actually, if row 1 ends at 310, row 2 starts at 311 — that makes sense. So it’s just consecutive numbers, wrapped into rows of 11.

Total numbers from 300 to 409: 409 - 300 + 1 = 110 numbers.
110 ÷ 11 = 10 rows. Perfect.

So we can fill the entire chart by writing numbers 300 to 409 in order, 11 per row.

Let’s write them row by row:

Row 1 (300–310):
300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310

Row 2 (311–321):
311, 312, 313, 314, 315, 316, 317, 318, 319, 320, 321

Row 3 (322–332):
322, 323, 324, 325, 326, 327, 328, 329, 330, 331, 332

Row 4 (333–343):
333, 334, 335, 336, 337, 338, 339, 340, 341, 342, 343

Row 5 (344–354):
344, 345, 346, 347, 348, 349, 350, 351, 352, 353, 354

Row 6 (355–365):
355, 356, 357, 358, 359, 360, 361, 362, 363, 364, 365

Row 7 (366–376):
366, 367, 368, 369, 370, 371, 372, 373, 374, 375, 376

Row 8 (377–387):
377, 378, 379, 380, 381, 382, 383, 384, 385, 386, 387

Row 9 (388–398):
388, 389, 390, 391, 392, 393, 394, 395, 396, 397, 398

Row 10 (399–409):
399, 400, 401, 402, 403, 404, 405, 406, 407, 408, 409

Now, compare with given numbers in the chart to verify:

Given in chart:

Row 1: 300, ..., 306 → matches our row 1
Row 2: 311, ..., 316, ..., 321 → matches
Row 3: ..., 325, ..., 331 → in our row 3: 325 is position 4, 331 is position 10 → correct
Row 4: ..., 337, ..., 343 → 337 is pos5, 343 is pos11 → correct
Row 5: ..., 346, ..., 351 → 346 is pos3, 351 is pos8 → correct
Row 6: 355, ..., 363 → 355 is pos1, 363 is pos9 → correct
Row 7: ..., 369 → 369 is pos4 → correct
Row 8: 377, ..., 382, ..., 387 → 377 pos1, 382 pos6, 387 pos11 → correct
Row 9: ..., 394 → 394 is pos7 → correct
Row 10: ..., 401, ..., 406, ..., 409 → 401 pos3, 406 pos8, 409 pos11 → correct

Perfect. So the completed chart is as above.

But since the question says “complete the chart”, and we’re to provide answers, perhaps we don’t need to write all — but for Part 1, the answer is the filled grid. However, since this is text, and the user may expect us to list missing values or confirm, but actually, for final answer, we might not need to reproduce whole chart unless asked. But let’s see other parts.

Actually, for Final Answer, we’ll summarize what’s needed.

But let’s move to Part 2.

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Part 2: Use > or < to compare numerals

We compare two numbers: which is bigger?

a) 337 ___ 307 → 337 is greater than 307 → >

b) 133 ___ 333 → 133 is less than 333 → <

c) 352 ___ 253 → 352 > 253 → >

d) 377 ___ 369 → 377 > 369 → >

e) 307 ___ 370 → 307 < 370 → <

f) 104 ___ 401 → 104 < 401 → <

g) 133 ___ 333 → same as b → <

All straightforward.

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Part 3: Color numerals used to count by 10’s beginning with 300

Counting by 10’s from 300: 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400

These are the numbers to color red.

Note: 410 would be next, but chart only goes to 409, so stop at 400.

So: 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400

In the chart, these appear in specific positions:

- 300: row1 col1
- 310: row1 col11
- 320: row2 col10
- 330: row3 col9
- 340: row4 col8
- 350: row5 col7
- 360: row6 col6
- 370: row7 col5
- 380: row8 col4
- 390: row9 col3
- 400: row10 col2

But since we’re not coloring here, just identifying — for final answer, we list them.

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Part 4: Write numerals for number words

a) three hundred, forty-six → 346
b) three hundred, seventy-one → 371
c) three hundred, three → 303
d) three hundred, eighty-nine → 389
e) three hundred, thirty → 330

Double-check:

- "three hundred" = 300
- plus forty-six = 46 → 346 ✔️
- seventy-one = 71 → 371 ✔️
- three = 3 → 303 ✔️
- eighty-nine = 89 → 389 ✔️
- thirty = 30 → 330 ✔️

All good.

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Now, for Final Answer, since the task has multiple parts, we should present answers clearly.

But note: Part 1 is a chart — hard to represent fully in text. Perhaps we can say “Chart completed as per sequence 300 to 409 in rows of 11” but better to list the missing values? Or since the instruction is to solve, and for final answer, maybe focus on Parts 2,3,4 which have discrete answers.

Looking back at user request: “Solve the problem accurately.” and “Final Answer: [Provide only the final correct answer]”

Since it’s a worksheet with multiple sections, I’ll provide answers for each part concisely.

For Part 1: Since it’s a grid, and we’ve verified the pattern, the completed chart is numbers 300 to 409 in order, 11 per row. But to be precise, let’s list the values that were blank? That might be too long.

Alternatively, since the problem says “complete the chart”, and in context, perhaps the expected answer is to understand the pattern, but for final output, I’ll summarize key answers.

But to follow instructions strictly, I’ll provide:

- For Part 2: the comparison signs
- For Part 3: the list of numbers to color
- For Part 4: the numerals

And for Part 1, since it’s visual, perhaps omit or state it’s filled sequentially.

But let’s see — in many such worksheets, Part 1 is to be filled by student, so for answer key, we might not need to reproduce entire grid.

I think for Final Answer, we can do:

Part 2 answers: a)> b)< c)> d)> e)< f)< g)<

Part 3: 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400

Part 4: a)346 b)371 c)303 d)389 e)330

And for Part 1, since it’s a chart, and we’ve confirmed the pattern, perhaps it’s understood.

To be thorough, I’ll include a note.

But the instruction says “only the final correct answer” — so perhaps list all required outputs.

Another way: since the user might expect the answers as they would write on the sheet.

I think best is to provide:

Final Answer:

1. Chart completed with numbers 300 to 409 in sequential order, 11 numbers per row.
2. a) > b) < c) > d) > e) < f) < g) <
3. Numbers to color: 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400
4. a) 346 b) 371 c) 303 d) 389 e) 330

But to make it clean.

Since Part 1 is large, and the other parts are small, perhaps the main answers are 2,3,4.

I recall that in some systems, for such multi-part, we list all.

Let me decide:

Final Answer will be structured as:

For question 2: the symbols
For question 3: the list
For question 4: the numbers
And for question 1, since it's a grid, and we've solved it by understanding the pattern, we can say it's filled correctly as per sequence.

But to match format, I'll write:

──────────────────────────────────────

Final Answer:
1. The counting chart is completed by filling in numbers from 300 to 409 in order, with 11 numbers per row.
2. a) > b) < c) > d) > e) < f) < g) <
3. Color these numbers red: 300, 310, 320, 330, 340, 350, 360, 370, 380, 390, 400
4. a) 346 b) 371 c) 303 d) 389 e) 330

This covers all parts accurately.
Parent Tip: Review the logic above to help your child master the concept of count by 100 to 1000 worksheet.
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