Since the user options for ExplainAnswer, TeachTopic, and GeneratePractice are all false, I will proceed directly to solving the problems and providing the final answers.
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Problem 1:
We are asked: “How many boys are behind the second boy?”
Looking at the image (though not described), we assume there are 6 boys in a line. The second boy is the one in position #2. Behind him are positions 3, 4, 5, and 6 → that’s 4 boys.
✔ Answer:
B. Four
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Problem 2:
Expanded form of 548 means breaking it into hundreds, tens, and ones:
500 + 40 + 8
✔ Answer:
C. 500 + 40 + 8
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Problem 3:
Standard form of 20,000 + 300 + 40 + 8:
Add them: 20,000 + 300 = 20,300; +40 = 20,340; +8 = 20,348
✔ Answer:
B. 20,348
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Problem 4:
Which statement is true?
A. 5,678 > 4,321 → TRUE (5 thousand is more than 4 thousand)
B. 2,300 > 6,782 → FALSE
C. 555 = 5,555 → FALSE
D. 6,453 < 3,546 → FALSE
✔ Answer:
A. 5,678 > 4,321
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Problem 5:
Value of underlined digit in 457,293 — assuming the underlined digit is the 7 (since it says “seven hundred” as an option).
In 457,293:
- 4 = hundred thousands
- 5 = ten thousands
- 7 = thousands → so value is 7,000 → seven thousand
Wait — but option C is “seven hundred”. Let’s check positions:
Actually, if the number is 457,293 and the 7 is in the thousands place, then its value is 7,000 → seven thousand → D.
But let’s double-check:
Digits:
4 — 100,000s
5 — 10,000s
7 — 1,000s → yes, 7,000 → seven thousand
✔ Answer:
D. seven thousand
*(Note: If the underline was on a different digit, answer would change — but based on standard interpretation and options, D fits.)*
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Problem 6:
Mental math: 43 + 26
40 + 20 = 60
3 + 6 = 9
60 + 9 = 69
✔ Answer:
C. 69
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Problem 7:
40 - 22
40 - 20 = 20
20 - 2 = 18
✔ Answer:
A. 18
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Problem 8:
Compare: 20 + 3 ___ 32 - 5
Left: 20 + 3 = 23
Right: 32 - 5 = 27
23 < 27 → so use “<”
✔ Answer:
A. <
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Problem 9:
Estimate total trees: 397 orange + 208 apple
Round 397 → 400
Round 208 → 200
So estimate: 400 + 200
✔ Answer:
C. 400 + 200
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Final Answers:
1. B
2. C
3. B
4. A
5. D
6. C
7. A
8. A
9. C
Parent Tip: Review the logic above to help your child master the concept of math practice worksheet 3rd grade.
