Grade 4 math worksheet for converting between fluid ounces, quarts, and gallons.

Let’s go step by step to convert between fluid ounces (fl oz), quarts (qt), and gallons (gal).

We’re given:
- 1 gallon = 4 quarts
- 1 gallon = 128 fluid ounces
→ So, 1 quart = 32 fluid ounces (because 128 ÷ 4 = 32)

We’ll use these conversions for each problem:

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Problem 1: 8 gal = ___ fl oz = ___ gal

Wait — this says “= ___ fl oz = ___ gal” — that doesn’t make sense. Probably a typo. It should be:
“8 gal = ___ fl oz” and maybe another part? But looking at the worksheet layout, it’s likely just asking to convert 8 gal to fl oz.

But let’s check the example:
Example: 256 fl oz = 2 gal → which is correct because 2 × 128 = 256.

So for #1:
8 gal × 128 fl oz/gal = 1024 fl oz

Then it says “= ___ gal” — probably a mistake in formatting. Maybe it meant to say “and also express as something else?” But since 8 gal is already in gallons, perhaps it’s redundant. We’ll assume it’s only asking for fl oz.

Actually, looking again — the line says:
“1. 8 gal = _______ fl oz = _______ gal”

That must be an error. Perhaps it’s supposed to be two separate questions? Or maybe it’s testing if you know 8 gal = 8 gal? That seems odd.

Alternatively, maybe it’s a fill-in-the-blank where both blanks are for different units? But that doesn’t fit.

Looking at other problems, they all have one conversion per item. For example:

#2: 4 qt = ___ gal → so we divide by 4 → 1 gal

#3: 128 fl oz = ___ gal → 128 ÷ 128 = 1 gal

So I think #1 has a typo. Likely, it should be:

“1. 8 gal = _______ fl oz”

And then maybe the second blank is for something else? But no — let’s look at the structure.

Actually, re-examining the image description — the user wrote:

“1. 8 gal = _______ fl oz = _______ gal”

This is confusing. But perhaps it’s meant to be two separate conversions? Like:

Convert 8 gal to fl oz → 1024 fl oz
And then convert that back to gal? Which would be 8 gal again.

But that seems silly.

Alternatively, maybe it’s a misprint and it should be:

“1. 8 gal = _______ fl oz”
and then next line starts with “2.” etc.

Given that, and to avoid confusion, I’ll solve each as written, assuming the first blank is for fl oz, and the second blank might be a mistake — but since it says “= ___ gal”, and 8 gal is already in gal, maybe it’s just repeating? Unlikely.

Wait — perhaps it’s “8 gal = ___ fl oz” and then separately “___ gal = ?” but no.

Another idea: maybe the second blank is for quarts? But it says “gal”.

I think there’s a formatting error. Let me proceed with what makes sense.

For #1: Convert 8 gal to fl oz → 8 × 128 = 1024 fl oz

The second part “= ___ gal” — if forced, it’s 8 gal, but that’s trivial.

Perhaps it’s a test to see if students realize that 8 gal = 8 gal? Not helpful.

Looking at #17 and #18 — they are similar:

“17. 14 gal = ___ qt”
“18. 5 gal = ___ fl oz”

So probably #1 is meant to be:

“1. 8 gal = ___ fl oz” — and the “= ___ gal” is a typo or leftover from editing.

I’ll assume that and move on. If needed, I can note it later.

But to be safe, let’s do all as written.

Actually, let’s list them properly based on standard interpretation.

I will solve each problem as it appears, using the conversion factors.

Conversion factors:
- 1 gal = 4 qt
- 1 gal = 128 fl oz
- Therefore, 1 qt = 32 fl oz

Now, solving each:

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1. 8 gal = ___ fl oz = ___ gal

First blank: 8 gal × 128 fl oz/gal = 1024 fl oz

Second blank: It says “= ___ gal” — since it’s already 8 gal, it should be 8 gal, but that seems redundant. Perhaps it’s a mistake, and it should be quarts? But it says “gal”. I’ll put 8 gal, though it’s odd.

Maybe it’s “convert to fl oz and then back to gal” — which gives same number. So 1024 fl oz = 8 gal.

So answer: 1024 fl oz and 8 gal.

But let’s confirm with example: Example was “256 fl oz = 2 gal” — so they show conversion from fl oz to gal.

Here, starting from gal to fl oz, then presumably back? But why?

I think it’s poorly formatted. To match the pattern, perhaps the second blank is not needed, but since it’s there, I’ll include it.

So for #1: 1024 fl oz and 8 gal.

But 8 gal is the original, so maybe it’s a trick? No.

Another thought: perhaps “8 gal = ___ fl oz” and then “___ gal = [something]” but no.

I’ll proceed with 1024 fl oz for the first blank, and for the second blank, since it says “= ___ gal”, and we have 1024 fl oz, which equals 8 gal, so yes, 8 gal.

So: 8 gal = 1024 fl oz = 8 gal — tautological, but mathematically correct.

Okay.

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2. 4 qt = ___ gal

Since 4 qt = 1 gal, answer is 1 gal

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3. 128 fl oz = ___ gal

128 fl oz ÷ 128 fl oz/gal = 1 gal

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4. 6 gal = ___ fl oz

6 × 128 = 768 fl oz

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5. 7 gal = ___ fl oz

7 × 128 = 896 fl oz

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6. 15 gal = ___ qt

15 gal × 4 qt/gal = 60 qt

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7. 7 qt = ___ fl oz

7 qt × 32 fl oz/qt = 224 fl oz

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8. 32 qt = ___ gal

32 qt ÷ 4 qt/gal = 8 gal

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9. 13 gal = ___ qt

13 × 4 = 52 qt

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10. 2 gal = ___ fl oz

2 × 128 = 256 fl oz

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11. 48 qt = ___ gal

48 ÷ 4 = 12 gal

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12. 1 gal = ___ qt

By definition, 4 qt

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13. 4 gal = ___ fl oz

4 × 128 = 512 fl oz

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14. 64 qt = ___ gal

64 ÷ 4 = 16 gal

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15. 13 qt = ___ fl oz

13 × 32 = 416 fl oz

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16. 32 fl oz = ___ qt

32 fl oz ÷ 32 fl oz/qt = 1 qt

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17. 14 gal = ___ qt

14 × 4 = 56 qt

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18. 5 gal = ___ fl oz

5 × 128 = 640 fl oz

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Now, compiling all answers:

1. 8 gal = 1024 fl oz = 8 gal → but as discussed, perhaps only first blank is intended. However, since the worksheet shows two blanks, I'll provide both.

But to be precise, let's write the answers as per the blanks.

Final Answers List:

1. 1024 fl oz, 8 gal
2. 1 gal
3. 1 gal
4. 768 fl oz
5. 896 fl oz
6. 60 qt
7. 224 fl oz
8. 8 gal
9. 52 qt
10. 256 fl oz
11. 12 gal
12. 4 qt
13. 512 fl oz
14. 16 gal
15. 416 fl oz
16. 1 qt
17. 56 qt
18. 640 fl oz

Note: For #1, the second blank being "8 gal" is mathematically correct but unusual; however, based on the equation given, it fits.

If the worksheet intended only one conversion per item, then #1 might be just 1024 fl oz, but since it explicitly has two equals signs, I'll keep both.

Now, for the Final Answer section, since the user didn't specify options, and we're to provide final answers after reasoning, I'll list them clearly.

But the instruction says: "Provide only the final correct answer" — but there are 18 problems. So I need to present all.

Perhaps as a list.

Since it's a worksheet, I'll format it as:

Final Answer:
1. 1024 fl oz, 8 gal
2. 1 gal
3. 1 gal
4. 768 fl oz
5. 896 fl oz
6. 60 qt
7. 224 fl oz
8. 8 gal
9. 52 qt
10. 256 fl oz
11. 12 gal
12. 4 qt
13. 512 fl oz
14. 16 gal
15. 416 fl oz
16. 1 qt
17. 56 qt
18. 640 fl oz

But to make it neat, perhaps without the "fl oz", "qt", etc., but the blanks expect the unit implied.

In the worksheet, the units are given after the blank, like "_______ fl oz", so the answer should be just the number.

Looking back at the image description:

"1. 8 gal = _______ fl oz = _______ gal"

So the blanks are for numbers, and the units are specified.

Similarly, "2. 4 qt = _______ gal" — so blank is for number of gallons.

So for each, I should provide only the numerical value, as the unit is indicated.

So correcting:

1. First blank: number for fl oz → 1024
Second blank: number for gal → 8
2. Number for gal → 1
3. Number for gal → 1
4. Number for fl oz → 768
5. Number for fl oz → 896
6. Number for qt → 60
7. Number for fl oz → 224
8. Number for gal → 8
9. Number for qt → 52
10. Number for fl oz → 256
11. Number for gal → 12
12. Number for qt → 4
13. Number for fl oz → 512
14. Number for gal → 16
15. Number for fl oz → 416
16. Number for qt → 1
17. Number for qt → 56
18. Number for fl oz → 640

Yes.

So Final Answer should be a list of these numbers in order.

To box them, perhaps as a sequence.

Since it's multiple parts, I'll write them out.

Final Answer:
1. 1024, 8
2. 1
3. 1
4. 768
5. 896
6. 60
7. 224
8. 8
9. 52
10. 256
11. 12
12. 4
13. 512
14. 16
15. 416
16. 1
17. 56
18. 640

This matches the blanks.

For #1, even though it's odd, mathematically it's correct: 8 gal = 1024 fl oz, and 1024 fl oz = 8 gal, so the second blank is 8.

Perfect.