Free printable practice
Metric Units Mass Kg Gm Practice Activities
Class 3 maths worksheets for practising metric mass in kilograms and grams through conversions, comparisons, unit choice and simple word problems.
Practice that builds confidence
Understanding kg and g
These Class 3 maths worksheets help children practise measuring mass with kilograms and grams, including when to use kg for heavier objects and g/gm for lighter objects. Children build the idea that 1 kg = 1000 g and use it to compare, convert and solve simple measurement questions.
The printable activities include unit-choice questions, object-mass examples, conversion practice, comparing masses, and word problems set in familiar situations such as fruit, groceries, school bags and parcels. They are designed for steady practice in the Measurement chapter without needing special equipment.
This collection focuses on the metric units of mass used in Class 3 measurement. Children learn that kilograms are suitable for heavier things such as a rice bag or a child’s school bag, while grams are used for lighter things such as a pencil, a packet of biscuits or spices. The key relationship, 1 kg = 1000 g, is practised in small steps so it becomes meaningful rather than just memorised.
How the practice progresses
The worksheets begin with identifying the correct unit, then move to reading and writing masses using kg and g/gm. Children compare masses, order objects by weight, and complete conversions such as changing kilograms to grams. Later questions use short word problems where children decide whether to add, subtract, compare or convert before answering.
A simple parent routine
At home, place a few everyday items on a table: a flour packet, an apple, an eraser and a water bottle. Ask your child, “Would we measure this in kg or g?” Then read printed labels together and point out masses such as 500 g or 1 kg. After this short real-life warm-up, use one worksheet page and ask your child to explain one answer aloud.
Classroom uses for teachers
Teachers can use these printables during the Measurement unit as independent practice, maths centres, revision sheets or quick checks after teaching metric mass. They also work well for pair discussions: one child chooses the unit and the other explains why. Mixed question formats help reveal whether children understand the unit, the conversion and the operation needed in a word problem.
Common errors to watch for
Children may write kg for very light objects, forget that 1000 g makes 1 kg, or compare only the numbers and ignore the units. For example, 900 g is less than 1 kg even though 900 is a larger number than 1. Encourage them to convert to the same unit before comparing and to include the unit in every final answer.
Free printable PDF download
Use this Class 3 metric mass kg and g 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 give focused, printable practice for one skill at a time, so children are not overloaded. The questions connect symbols, real objects, comparisons and word problems, helping learners move from recognition to reasoning. A child-friendly strategy is: choose the unit, check if conversion is needed, then solve and write kg or g clearly.
Helpful answers
Frequently asked questions
What will my Class 3 child practise in these kg and g worksheets?
Your child will practise choosing between kilograms and grams, understanding that 1 kg = 1000 g, converting simple masses, comparing weights and solving short mass-based word problems.
Should children write g or gm in the answers?
Both are commonly understood in school use, but the standard metric symbol is g. If your child’s textbook uses gm, you can accept it while also showing that g is the correct symbol.
How can I explain the difference between kg and g at home?
Use familiar objects. A rice bag or school bag is usually measured in kilograms, while an eraser, fruit piece or small packet is often measured in grams. Reading package labels helps make the units real.
Do these worksheets include conversions between kilograms and grams?
Yes. Children practise the relationship 1 kg = 1000 g and use it in conversion, comparison and simple problem-solving questions suited to Class 3 measurement.
What mistake is most common in this topic?
A common mistake is comparing the numbers without checking the units, such as thinking 900 g is more than 1 kg. Children should convert masses to the same unit before comparing.
Is this Class 3 metric mass kg and g worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 3 metric mass kg and g 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 3 metric mass kg and g 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.