Tens and Ones — Missing Part Worksheets for 1st Grade
Given a two-digit number, find the missing tens or ones count. 15 free printable worksheets, each with an answer key.
Save to PinterestFree Tens and Ones — Missing Part Worksheets
Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
Worksheet #1
Worksheet #2
Worksheet #3
Worksheet #4
Worksheet #5
Worksheet #6
Worksheet #7
Worksheet #8
Worksheet #9
Worksheet #10
Worksheet #11
Worksheet #12
Worksheet #13
Worksheet #14
Worksheet #15
Tens and Ones — Missing Part: what children learn
This runs the tens-and-ones skill in reverse — instead of combining tens and ones into a number, it starts from the number and asks how many tens or ones make it up.
Tens and Ones — Missing Part: worked example
35 = 3 tens + __ ones 5
35 is made of 3 tens (30) plus some ones. Since 30 + 5 = 35, the missing amount is 5 ones.
Tens and Ones — Missing Part: a common mistake to watch for
Kids sometimes write the whole number as the answer instead of just the missing part — reminding them the tens amount is already given helps them focus on what's left.
Tens and Ones — Missing Part: how to help at home or in class
Hide some of the bundles or singles under a cup. Show the total, for instance 47, tell your child what remains visible, and let them work out what is hiding. Moving the visible tens or ones out of the whole is easy with a place-value mat. Say the problem as a story: I have 47, you can see 40, so what is under the cup? Once your child can find either missing part, expect more confidence with adding to tens.
What is on these Tens and Ones — Missing Part worksheets
This set has 15 different worksheets for 1st grade, with 16 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Fill in the missing number of tens or ones.”
Example questions like the ones on these worksheets, with their answers:
- 91 = __ tens + 1 one9
- 88 = 8 tens + __ ones8
- 52 = __ tens + 2 ones5
- 97 = 9 tens + __ ones7
- 96 = __ tens + 6 ones9
- 22 = __ tens + 2 ones2
- 83 = 8 tens + __ ones3
- 94 = 9 tens + __ ones4
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers