This grade 2 numbers worksheet answer key solves all 22 problems of the place value to 1,000 worksheet step by step.
Here is the full answer key for the place value worksheet. Every problem shows the steps, so students can find where a mistake happened. The final answers are in bold. Pictures from the worksheet are repeated when they help explain the work.
Grade 2 Numbers Worksheet Answer Key: problems 1–5
Problem 1: Count the blocks
Count each kind of block: 2 flats, 3 rods, and 4 cubes.
2 hundreds + 3 tens + 4 ones = \(200 + 30 + 4\) = 234.
Answer: 2 hundreds, 3 tens, 4 ones; the number is 234.
Problem 2: Zero rods in the middle
There are 5 flats, no rods, and 3 cubes. The tens place holds a zero.
\(500 + 0 + 3\) = 503.
Answer: 503.
Problem 3: Flats and rods, no cubes
There are 2 flats, 7 rods, and no cubes.
\(200 + 70 + 0\) = 270.
Answer: 270.
Problem 4: Name the places
Read 847 from left to right: hundreds, tens, ones.
- The hundreds digit is 8.
- The tens digit is 4.
- The ones digit is 7.
Problem 5: Value of a digit
5 is in the hundreds place, 8 is in the tens place, and 2 is in the ones place.
- The 5 is worth 500.
- The 8 is worth 80.
- The 2 is worth 2.
Grade 2 Numbers Worksheet Answer Key: problems 6–10
Problem 6: Same digit, new value
Look at the place of the 5.
- In 523, the 5 is in the hundreds place: 500.
- In 352, the 5 is in the tens place: 50.
- In 235, the 5 is in the ones place: 5.
Problem 7: Hundreds and tens
One hundred is made of ten tens.
- 1 hundred = 10 tens.
- 5 hundreds is 5 flats of 100, so the number is 500.
- 700 is 7 flats of 100, so it is 7 hundreds.
Problem 8: Trade the tens
Every 10 tens can be traded for 1 hundred.
- 10 tens = 1 hundred.
- 30 tens is 3 groups of 10 tens, so it is 3 hundreds.
- 5 hundreds is 5 groups of 10 tens, so it is 50 tens.
Problem 9: Expanded to standard
Add the values of the places.
- \(600 + 50 + 9\) = 659
- \(300 + 7\) = 307. There are no tens, so the tens digit is 0.
- \(800 + 40\) = 840. There are no ones, so the ones digit is 0.
Problem 10: Standard to expanded
Write the value of each digit that is not zero.
- 324 = \(300 + 20 + 4\)
- 760 = \(700 + 60\)
- 905 = \(900 + 5\)
Grade 2 Numbers Worksheet Answer Key: problems 11–15
Problem 11: Write the number name
Say the hundreds first. Use a hyphen for the tens and ones when both are used.
- 275 = two hundred seventy-five
- 190 = one hundred ninety
- 612 = six hundred twelve
Problem 12: Words to digits
Listen for the hundreds, then the tens, then the ones.
- four hundred eight = 408
- nine hundred fifty = 950
- three hundred sixteen = 316
Problem 13: Zero as a placeholder
The tens place has a zero, so the number is 703.
Expanded form: \(700 + 3\). We skip the 0 tens.
Answer: 703
Problem 14: Read the chart
The chart shows 9 hundreds, 0 tens, and 5 ones.
Standard form: 905.
Word form: nine hundred five.
Problem 15: Mixed-up order
Put each group in its place. Hundreds: 3. Tens: 9. Ones: 4.
\(300 + 90 + 4\) = 394.
Grade 2 Numbers Worksheet Answer Key: problems 16–20
Problem 16: Many tens
10 tens = 1 hundred, so 14 tens = 1 hundred + 4 tens.
The number is \(100 + 40 + 3\) = 143.
Problem 17: Sticker book
3 sheets = 300 stickers. 4 strips = 40 stickers. 8 singles = 8 stickers.
\(300 + 40 + 8\) = 348.
Answer: Maya has 348 stickers.
Problem 18: Pencil boxes
36 boxes of 10 pencils is 36 tens. Ten tens make a hundred, so 30 tens = 3 hundreds. That leaves 6 tens.
\(300 + 60\) = 360.
Answer: 360 pencils, which is 3 hundreds and 6 tens.
Problem 19: Library sign
five hundred seven means 5 hundreds, 0 tens, and 7 ones. Standard form: 507.
Expanded form: \(500 + 7\).
Problem 20: Find the mistake
The 0 in 7,041 pushes the 7 into the thousands place, so 7,041 is seven thousand forty-one. Diego wrote the 7 hundreds and then added a zero for no reason.
The number has 7 hundreds, 4 tens, and 1 one: \(700 + 40 + 1\).
Answer: The correct number is 741.
Grade 2 Numbers Worksheet Answer Key: problems 21–22
Problem 21: Number riddle
Hundreds digit: 4. Tens digit: 4 + 2 = 6. Ones digit: half of 6 is 3.
Standard form: 463.
Word form: four hundred sixty-three.
Problem 22: Swap the cards
The 9 is in the tens place in 296.
- The 9 is worth 90.
- After the swap, the tens card is 6 and the ones card is 9. The new number is 269.
- Expanded form: \(200 + 60 + 9\).
How to use this grade 2 numbers worksheet answer key
Read this grade 2 numbers worksheet answer key after trying each problem yourself, and redo any problem you missed.
See every chapter on the Grade 2 math page.