Mathematics Grade 3 worksheet - Free Printable

Let’s go through each part of the worksheet step by step. Since you didn’t specify which option to use (ExplainAnswer, TeachTopic, or GeneratePractice), and all are false, I’ll just solve the entire worksheet as requested — but per your rules, I must first reason through everything carefully before giving the final answer.

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Section 1: Write the number numeral

We convert words to digits:

- Seven hundred and twenty-one → 721
- Seven hundred and twenty-two → 722
- Seven hundred and twenty-three → 723
- Seven hundred and twenty-four → 724
- Seven hundred and twenty-five → 725
- Seven hundred and twenty-six → 726

✔ All correct.

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Section 2: Complete the sums

We solve each equation:

1. 720 + 9 = 729
2. 700 + ? = 773 → 773 - 700 = 73
3. 770 + ? = 790 → 790 - 770 = 20
4. 769 - 9 = 760

5. 720 + 15 = 735
6. 700 + ? = 774 → 774 - 700 = 74
7. 770 + ? = 780 → 780 - 770 = 10
8. 747 - 7 = 740

9. 730 + 30 = 760
10. 700 + ? = 776 → 776 - 700 = 76
11. 770 + ? = 792 → 792 - 770 = 22
12. 785 - 80 = 705

✔ All calculations checked.

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Section 3: Fill in the missing numbers

Pattern: starts at 700, then 710, 720 → increasing by 10 each time.

So:

700, 710, 720, 730, 740, 750, 760, 770, 780, 790

✔ Correct sequence.

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Section 4: Decompose (breaking up numbers)

This is about place value: Hundreds (H), Tens (T), Units (U)

First box: H + T + U = 793
→ So: 700 + 90 + 3 = 793

Second box: 700 + 90 + 2 = 792

Third box: 8 + 40 + 700 = 748

✔ Verified.

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Section 5: Write from smallest to biggest

Given numbers:
276, 444, 352, 177, 464, 575, 372, 193, 864, 762

Sort them:

Smallest: 177
Then: 193
Then: 276
Then: 352
Then: 372
Then: 444
Then: 464
Then: 575
Then: 762
Biggest: 864

So order:
177, 193, 276, 352, 372, 444, 464, 575, 762, 864

✔ Sorted correctly.

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Section 6: Round off to the nearest 10

Use the “Rounding Hill” idea: if number is 5 or more above the lower ten, round up; less than 5, round down.

- 623 → between 620 and 630 → 3 is less than 5 → 620
- 625 → exactly halfway → usually round up → 630
- 547 → between 540 and 550 → 7 ≥ 5 → 550
- 636 → between 630 and 640 → 6 ≥ 5 → 640

✔ All rounded correctly.

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Final Answer:
[721, 722, 723, 724, 725, 726, 729, 73, 20, 760, 735, 74, 10, 740, 760, 76, 22, 705, 730, 740, 750, 760, 770, 780, 790, 700, 90, 3, 792, 748, 177, 193, 276, 352, 372, 444, 464, 575, 762, 864, 620, 630, 550, 640]