Free printable practice
Subtracting Whole Tens Missing Number Practice Activities
Printable Class 1 maths worksheets for finding missing numbers in subtraction facts involving whole tens.
Practice that builds confidence
Understanding whole tens
These Class 1 maths worksheets help children practise subtraction with whole tens while finding the missing number in a number sentence. Children work with examples such as 80 - 30 = __, __ - 20 = 50, and 70 - __ = 40.
The printable activities include clear missing-number subtraction problems using multiples of ten. They support place value understanding, mental maths, and the idea that subtraction can be solved by counting back or thinking about related addition facts.
In this worksheet collection, children focus on numbers made from complete groups of ten, such as 10, 20, 30, and 90. This keeps the arithmetic simple enough for Class 1 while still building an important place value idea: 60 means 6 tens, and subtracting 20 means taking away 2 tens.
Missing numbers in different positions
The practice is not limited to finding the answer at the end. Children may find the starting number, the number being subtracted, or the final difference. For example, 90 - __ = 50 asks, “How many tens were taken away?” while __ - 40 = 30 asks, “What number did we start with?” This helps children understand subtraction more deeply than memorising answers.
A simple routine for parents
At home, ask your child to read each equation aloud before writing. Use bundles of sticks, ten-rupee notes, or quick drawings of tens rods to show the problem. For 70 - 30, place 7 groups of ten, remove 3 groups, and count the 4 groups left. Then connect the model to the written answer: 70 - 30 = 40.
Classroom use for teachers
Teachers can use these sheets for subtraction practice, maths centres, early finishers, or small-group support. They also work well after a lesson on counting by tens or place value. Encourage pupils to explain whether they counted back, used a number line, or used a related addition fact such as 50 + 20 = 70.
Common errors to watch for
Some children subtract the digits only and forget the zero, writing 7 - 3 = 4 instead of 70 - 30 = 40. Others may confuse the missing part in equations like 80 - __ = 20. Remind them that every number is a whole ten, so the answer must also be a whole ten.
Free printable PDF download
Use this Class 1 subtracting whole tens missing number worksheet page to preview the activity, print it, or download it as a PDF for quick practice. It works well for homework, homeschool lessons, tutoring, morning work, revision, and classroom centers.
Answers and answer key support
After the child completes the worksheet independently, parents and teachers can use the answer support or answer key information to check the work, review mistakes, and choose the next practice step.
Why iBloom worksheets help
The worksheets give focused, uncluttered practice on one Class 1 subtraction skill. A child-friendly strategy is: “Look at the tens, solve the small fact, then put the zero back.” This builds confidence with missing numbers before children meet more complex subtraction later.
Helpful answers
Frequently asked questions
What does subtracting whole tens mean in Class 1?
It means subtracting numbers such as 10, 20, 30, or 40 from another multiple of ten, for example 80 - 30 = 50.
What types of missing numbers are included?
Children may find the answer, the starting number, or the number being subtracted, such as 60 - 20 = __, __ - 30 = 40, and 90 - __ = 50.
How can I help my child solve these without guessing?
Use tens rods, bundles of sticks, or ten-rupee note drawings. Show the tens, take away the required groups, and then write the matching number sentence.
Should children count by ones or tens for these worksheets?
Counting by tens is more suitable. It helps children see 70 as 7 tens and makes problems like 70 - 20 easier to solve mentally.
Why are missing-number subtraction problems useful?
They help children understand the parts of a subtraction sentence instead of only filling in final answers. This prepares them for word problems and later arithmetic.
Is this Class 1 subtracting whole tens missing number worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 1 subtracting whole tens missing number worksheet as a PDF?
Yes. Use the worksheet download option to save a printable PDF, or print the worksheet directly from the page.
Does this Class 1 subtracting whole tens missing number worksheet include answers or an answer key?
When the activity has fixed answers, iBloom includes answer support so parents and teachers can check the completed worksheet.