Let's solve the worksheet step by step. The task is to
build a 5-digit number from its parts — that is, we are given the expanded form of a number (in terms of place values), and we need to write the full 5-digit number.
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🔢 Understanding Place Values:
A 5-digit number has the following place values:
-
Ten Thousands (10,000)
-
Thousands (1,000)
-
Hundreds (100)
-
Tens (10)
-
Ones (1)
We’ll add up all the parts to get the full number.
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Now let’s go through each problem:
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1.
40,000 + 2,000 + 400 + 80 + 8
= 40,000 + 2,000 = 42,000
+ 400 = 42,400
+ 80 = 42,480
+ 8 =
42,488
✔ Answer: 42,488
---
2.
70,000 + 5,000 + 200 + 30 + 5
= 70,000 + 5,000 = 75,000
+ 200 = 75,200
+ 30 = 75,230
+ 5 =
75,235
✔ Answer: 75,235
---
3.
40,000 + 5,000 + 500 + 80
= 40,000 + 5,000 = 45,000
+ 500 = 45,500
+ 80 =
45,580
✔ Answer: 45,580
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4.
90,000 + 1,000 + 400 + 80 + 3
= 90,000 + 1,000 = 91,000
+ 400 = 91,400
+ 80 = 91,480
+ 3 =
91,483
✔ Answer: 91,483
---
5.
10,000 + 2,000 + 800 + 30 + 7
= 10,000 + 2,000 = 12,000
+ 800 = 12,800
+ 30 = 12,830
+ 7 =
12,837
✔ Answer: 12,837
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6.
10,000 + 8,000 + 400 + 10 + 4
= 10,000 + 8,000 = 18,000
+ 400 = 18,400
+ 10 = 18,410
+ 4 =
18,414
✔ Answer: 18,414
---
7.
10,000 + 9,000 + 400 + 40 + 3
= 10,000 + 9,000 = 19,000
+ 400 = 19,400
+ 40 = 19,440
+ 3 =
19,443
✔ Answer: 19,443
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8.
70,000 + 3,000 + 900 + 70 + 1
= 70,000 + 3,000 = 73,000
+ 900 = 73,900
+ 70 = 73,970
+ 1 =
73,971
✔ Answer: 73,971
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9.
20,000 + 2,000 + 400 + 20 + 3
= 20,000 + 2,000 = 22,000
+ 400 = 22,400
+ 20 = 22,420
+ 3 =
22,423
✔ Answer: 22,423
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10.
40,000 + 5,000 + 300 + 30 + 9
= 40,000 + 5,000 = 45,000
+ 300 = 45,300
+ 30 = 45,330
+ 9 =
45,339
✔ Answer: 45,339
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✔ Final Answers:
1.
42,488
2.
75,235
3.
45,580
4.
91,483
5.
12,837
6.
18,414
7.
19,443
8.
73,971
9.
22,423
10.
45,339
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📌 Explanation:
Each number is built by adding the values based on their
place value:
- Ten thousands → 10,000s
- Thousands → 1,000s
- Hundreds → 100s
- Tens → 10s
- Ones → 1s
You simply
add all the parts together to get the complete 5-digit number.
Let me know if you'd like this as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of 4th grade place value worksheets.