Let’s solve each problem step by step.
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Problem ①: 40,000 + 300 + 7 = ?
Add them together:
- 40,000 (ten thousands)
- + 300 (hundreds)
- + 7 (ones)
No thousands or tens? That’s okay — we just leave those places as 0.
So:
40,000 + 300 = 40,300
40,300 + 7 =
40,307
✔ Answer:
40,307
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Problem ②: 90,000 + 6,000 + 60 + 4 = ?
Break it down:
- 90,000 + 6,000 = 96,000
- 96,000 + 60 = 96,060
- 96,060 + 4 =
96,064
✔ Answer:
96,064
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Problem ③: 30,000 + 5,000 + 700 + 60 + 1 = ?
Add step by step:
- 30,000 + 5,000 = 35,000
- 35,000 + 700 = 35,700
- 35,700 + 60 = 35,760
- 35,760 + 1 =
35,761
✔ Answer:
35,761
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Problem ④: 40,000 + 8,000 + 600 + 60 + 4 = ?
Step-by-step:
- 40,000 + 8,000 = 48,000
- 48,000 + 600 = 48,600
- 48,600 + 60 = 48,660
- 48,660 + 4 =
48,664
✔ Answer:
48,664
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Problem ⑤: 90,000 + 5,000 + 300 + 80 + 2 = ?
Add:
- 90,000 + 5,000 = 95,000
- 95,000 + 300 = 95,300
- 95,300 + 80 = 95,380
- 95,380 + 2 =
95,382
✔ Answer:
95,382
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Now the “Find the missing numbers” section.
We’ll subtract the known parts from the total to find what’s missing.
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Problem ⑥: _____ + 8,000 + 500 + 50 + 3 = 98,553
First, add up the known parts:
8,000 + 500 = 8,500
8,500 + 50 = 8,550
8,550 + 3 =
8,553
Now subtract that from the total:
98,553 - 8,553 =
90,000
✔ Missing number:
90,000
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Problem ⑦: 10,000 + _____ + 700 + 70 + 6 = 16,776
Add known parts:
10,000 + 700 = 10,700
10,700 + 70 = 10,770
10,770 + 6 =
10,776
Subtract from total:
16,776 - 10,776 =
6,000
✔ Missing number:
6,000
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Problem ⑧: _____ + 6,000 + 600 + 20 + 6 = 96,626
Add known parts:
6,000 + 600 = 6,600
6,600 + 20 = 6,620
6,620 + 6 =
6,626
Subtract from total:
96,626 - 6,626 =
90,000
✔ Missing number:
90,000
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Problem ⑨: 20,000 + _____ + 600 + 20 + 4 = 22,624
Add known parts:
20,000 + 600 = 20,600
20,600 + 20 = 20,620
20,620 + 4 =
20,624
Subtract from total:
22,624 - 20,624 =
2,000
✔ Missing number:
2,000
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Problem ⑩: 30,000 + 0 + _____ + 20 + 4 = 30,524
Add known parts:
30,000 + 0 = 30,000
30,000 + 20 = 30,020
30,020 + 4 =
30,024
Subtract from total:
30,524 - 30,024 =
500
✔ Missing number:
500
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Final Answer:
① 40,307
② 96,064
③ 35,761
④ 48,664
⑤ 95,382
⑥ 90,000
⑦ 6,000
⑧ 90,000
⑨ 2,000
⑩ 500
Parent Tip: Review the logic above to help your child master the concept of place value chart worksheet 4th.