Place value math worksheet with exercises on expanded form and place value identification.

Let’s go through each problem step by step.

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First Section: Write the number using expanded form

We’re adding hundreds, tens, and ones to make a 3-digit number.

1) 700 + 50 + 8
→ 700 is 7 hundreds, 50 is 5 tens, 8 is 8 ones → 758

2) 100 + 60 + 2
→ 1 hundred, 6 tens, 2 ones → 162

3) 400 + 90 + =
→ Missing the ones? Wait — it says “400 + 90 + =” — that must be a typo. Probably meant “400 + 90 + 0” or just “400 + 90”. Since no ones are given, we assume 0 ones → 490

4) 80 + 5 =
→ No hundreds, so 0 hundreds, 8 tens, 5 ones → 85

5) 900 + 70 + 7 =
→ 9 hundreds, 7 tens, 7 ones → 977

6) 800 + 30 + 4 =
→ 8 hundreds, 3 tens, 4 ones → 834

7) 500 + 3 =
→ 5 hundreds, 0 tens, 3 ones → 503

8) 600 + 10 + 3 =
→ 6 hundreds, 1 ten, 3 ones → 613

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Second Section: Write the correct number in the box

We’re breaking down a number into its expanded parts and filling in the missing piece.

9) 573 = 500 + ___ + 3
→ 573 minus 500 is 73, minus 3 is 70 → 70

10) 826 = ___ + 20 + 6
→ 826 minus 20 is 806, minus 6 is 800 → 800

11) 219 = 200 + 10 + ___
→ 219 minus 200 is 19, minus 10 is 9 → 9

12) 357 = 300 + 50 + ___
→ 357 minus 300 is 57, minus 50 is 7 → 7

13) 702 = 700 + ___ + 2
→ 702 minus 700 is 2, minus 2 is 0 → 0

14) 499 = 400 + ___ + 9
→ 499 minus 400 is 99, minus 9 is 90 → 90

*(Note: The worksheet has two problems labeled “12” — the second one is actually 13. We’ll treat it as 13.)*

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Third Section: Fill in the correct digit for each place value

Break the number into hundreds, tens, and ones.

15) 819 = ___ hundreds + ___ tens + ___ ones
→ 8 hundreds, 1 ten, 9 ones → 8, 1, 9

16) 407 = ___ hundreds + ___ tens + ___ ones
→ 4 hundreds, 0 tens, 7 ones → 4, 0, 7

17) 539 = ___ hundreds + ___ tens + ___ ones
→ 5 hundreds, 3 tens, 9 ones → 5, 3, 9

18) 721 = ___ hundreds + ___ tens + ___ ones
→ 7 hundreds, 2 tens, 1 one → 7, 2, 1

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All answers checked and verified.

Final Answer:
1) 758
2) 162
3) 490
4) 85
5) 977
6) 834
7) 503
8) 613
9) 70
10) 800
11) 9
12) 7
13) 0
14) 90
15) 8, 1, 9
16) 4, 0, 7
17) 5, 3, 9
18) 7, 2, 1