Free printable practice
Adding Practice Activities
Printable Class 1 maths worksheets for practising addition with base ten blocks by combining tens rods and ones cubes.
Practice that builds confidence
What children learn with the blocks
These Class 1 adding practice activities help children understand addition using base ten blocks. Learners build numbers with tens rods and ones cubes, combine the blocks, and then write the matching addition sentence.
The printable worksheets include picture-based sums, block counting, missing totals, and simple written addition connected to the models. Children see that adding means putting groups together, not just memorising answers.
Base ten blocks make addition visible. A tens rod shows one group of ten, and a ones cube shows a single unit. When children add, they join the rods with rods and cubes with cubes, then count the total as tens and ones. This supports place value while practising sums.
How the practice progresses
The activities begin with clear block pictures where children count all the ones and tens. They then move towards writing number sentences such as 23 + 14 = 37 after reading the blocks. Some questions ask children to complete a missing total or draw the blocks for a given addition. If a set shows ten ones, children can learn that those ten ones make one ten rod.
Simple parent routine at home
Use a short, consistent routine: read the sum, build the first number, build the second number, push the blocks together, count tens first, then ones, and say the full answer aloud. Ask, “How many tens? How many ones? What number is that?” If blocks are not available, use sticks bundled in tens and loose buttons or rajma beans as ones.
Classroom uses for teachers
Teachers can use these printables for guided maths groups, revision after a base ten lesson, independent practice, or quick checks during centres. Pairing pupils is useful: one child reads the blocks and the other writes the addition sentence. The sheets also work well for board demonstration before children complete similar problems on paper.
Common errors to watch for
Children may count each rod as 1 instead of 10, mix tens and ones while counting, or write the digits in the wrong places. Some may count the first group again after already saying its value. Encourage them to touch each rod once, count 10, 20, 30, and then count the ones.
Free printable PDF download
Use this Class 1 base ten blocks adding 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
iBloom worksheets connect the picture, the maths language, and the written sum on the same page. The layout gives Class 1 children enough structure to practise independently while still encouraging them to explain their thinking. A child-friendly strategy is: “Build it, join it, count tens, count ones, write the answer.”
Helpful answers
Frequently asked questions
What do children practise in these Class 1 adding worksheets?
Children practise adding by looking at base ten block pictures, combining tens rods and ones cubes, counting the total, and writing the matching addition sentence.
Are these worksheets only for children who already know place value?
No. The block pictures support place value as children work. They can see that a tens rod stands for 10 and a small cube stands for 1 while solving each addition.
How can I help my child if we do not have base ten blocks at home?
Use bundled sticks for tens and loose objects such as buttons, seeds, or rajma beans for ones. Build both numbers, join the groups, and count tens before ones.
Do these activities include carrying or regrouping?
The main focus is understanding addition with tens and ones. If a question shows ten ones, it can be used to introduce the idea that ten ones can be exchanged for one ten.
What mistake should I watch for during block addition?
A common mistake is counting each tens rod as 1 instead of 10. Ask the child to point to the rods and count 10, 20, 30 before counting the ones.
Is this Class 1 base ten blocks adding 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 base ten blocks adding 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 base ten blocks adding 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.