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Subtract a 1-Digit Number from a 3-Digit Number Worksheets for 2nd Grade

Subtract a 1-digit number from a 3-digit number by trading a ten. 15 free printable worksheets, each with an answer key.

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Free Subtract a 1-Digit Number from a 3-Digit Number Worksheets

Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.

Subtract a 1-Digit Number from a 3-Digit Number: what children learn

Subtracting a one-digit number from a three-digit number here always needs one trade in the ones place: 1 ten becomes 10 ones. The hundreds digit stays the same.

Subtract a 1-Digit Number from a 3-Digit Number: worked example

342 - 7 = 335

Trade 1 ten for 10 ones: 3 hundreds, 3 tens, 12 ones. 12 - 7 = 5. So 342 - 7 = 335.

Subtract a 1-Digit Number from a 3-Digit Number: a common mistake to watch for

Kids forget to lower the tens digit by one after trading.

Subtract a 1-Digit Number from a 3-Digit Number: how to help at home or in class

Write the number in expanded form, 654 as 600 + 50 + 4, then rewrite it as 600 + 40 + 14 before taking away 8. Your child can see that the hundreds are never touched, while the tens lose one and the ones gain ten. Do several, saying the new form out loud each time. They are ready to move on when they write the traded form without prompting and the answer passes a quick estimate.

What is on these Subtract a 1-Digit Number from a 3-Digit Number worksheets

This set has 15 different worksheets for 2nd grade, with 15 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Subtract in columns and write the answer.”

Example questions like the ones on these worksheets, with their answers:

  • 353 - 7 = 346346
  • 350 - 8 = 342342
  • 734 - 6 = 728728
  • 130 - 9 = 121121
  • 621 - 6 = 615615
  • 131 - 5 = 126126
  • 983 - 9 = 974974
  • 171 - 3 = 168168

Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers

Related Subtraction worksheets for 2nd grade

Subtract a 1-Digit Number (No Regrouping)
Subtract a 1-digit number from a 2-digit number when no trade is needed.
Subtract a 1-Digit Number (With Regrouping)
Subtract a 1-digit number from a 2-digit number by trading a ten.
Subtract a 1-Digit Number — Missing Number
Find the missing number when subtracting a 1-digit number from a 2-digit number.
Subtract Tens from 2-Digit Numbers
Subtract a whole ten from a 2-digit number, like 87 - 30.
Subtract Tens from 3-Digit Numbers
Subtract a whole ten from a 3-digit number, like 547 - 30.
Subtract Whole Hundreds
Subtract whole hundreds from a 3-digit number, like 745 - 300.
All Subtraction worksheets
See every subtraction topic for 2nd grade