Let’s solve each part step by step.
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Part 1: What is the value of the underlined digit?
We need to look at the place value of the underlined digit in each number.
a.
4,125 → The “1” is underlined.
It’s in the
hundreds place → So its value is
100
b.
6,024 → The “0” is underlined.
It’s in the
hundreds place → So its value is
0 (or we can say 0 hundreds = 0)
c.
1,247 → The “7” is underlined.
It’s in the
ones place → So its value is
7
d.
1,321 → The first “1” (on the left) is underlined.
It’s in the
thousands place → So its value is
1,000
e.
3,333 → The last “3” is underlined.
It’s in the
ones place → So its value is
3
f.
526 → The “2” is underlined.
It’s in the
tens place → So its value is
20
g.
1,478 → The “4” is underlined.
It’s in the
hundreds place → So its value is
400
h.
6,427 → The “6” is underlined.
It’s in the
thousands place → So its value is
6,000
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Part 2: Write each number in standard form.
These are base-10 blocks:
- Each big column = 100 (10 rows of 10)
- Each single tall rod = 10
- Each small cube = 1
a. Count the blocks:
→ 9 columns of 100 = 900
→ 1 rod of 10 = 10
→ 1 cube = 1
Total = 900 + 10 + 1 =
911
b. Count the blocks:
→ 9 columns of 100 = 900
→ 2 rods of 10 = 20
→ 4 cubes = 4
Total = 900 + 20 + 4 =
924
c. Count the blocks:
→ 10 columns of 100 = 1,000
→ 1 rod of 10 = 10
→ 3 cubes = 3
Total = 1,000 + 10 + 3 =
1,013
d. Count the blocks:
→ 10 columns of 100 = 1,000
→ 1 rod of 10 = 10
→ 8 cubes = 8
Total = 1,000 + 10 + 8 =
1,018
Wait — let me double-check d:
Looking again:
There are 10 full hundred-blocks → that’s 1,000
Then one ten-block → 10
And 8 ones → 8
Yes, 1,000 + 10 + 8 =
1,018
But wait — actually, looking more carefully at image d:
The hundred-blocks: there are 10 columns → yes, 1,000
Ten-blocks: only 1 → 10
Ones: 8 cubes → 8
So yes, 1,018 is correct.
Actually — hold on! Let me recount all parts again for accuracy.
Rechecking Part 2:
a. Hundreds: 9 → 900
Tens: 1 → 10
Ones: 1 → 1
→ 911
✔
b. Hundreds: 9 → 900
Tens: 2 → 20
Ones: 4 → 4
→ 924
✔
c. Hundreds: 10 → 1,000
Tens: 1 → 10
Ones: 3 → 3
→ 1,013
✔
d. Hundreds: 10 → 1,000
Tens: 1 → 10
Ones: 8 → 8
→ 1,018
✔
All good.
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Part 3: Write the word name for each number.
a. 25 → twenty-five
b. 36 → thirty-six
c. 102 → one hundred two
d. 327 → three hundred twenty-seven
e. 89 → eighty-nine
Note: We don’t use “and” unless it’s a decimal or money. For whole numbers, just say the words directly.
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Final Answer:
1. Value of underlined digit:
a. 100
b. 0
c. 7
d. 1,000
e. 3
f. 20
g. 400
h. 6,000
2. Standard form from blocks:
a. 911
b. 924
c. 1,013
d. 1,018
3. Word names:
a. twenty-five
b. thirty-six
c. one hundred two
d. three hundred twenty-seven
e. eighty-nine
Parent Tip: Review the logic above to help your child master the concept of place value worksheet for grade 3.
