Free printable practice
Mass Weight Practice Activities
Printable Class 4 maths worksheets for solving mass and weight word problems using kilograms, grams, conversion, comparison, and basic operations.
Practice that builds confidence
What children learn
These Class 4 mass and weight word problem worksheets help children practise reading real-life situations involving kilograms and grams. They learn to decide whether to add, subtract, multiply, divide, compare, or convert before finding the answer.
The printable activities include practical contexts such as grocery items, parcels, recipes, school supplies, and weighing scales. Children build confidence with units, statements, and step-by-step working instead of only doing number calculations.
Children work with mass and weight in familiar units such as kilogram and gram. The main idea is to understand that 1 kg = 1000 g, then use this relationship inside word problems. A question may ask for the total weight of two bags, the difference between two parcels, the weight of several equal packets, or how much is left after some quantity is used.

Progression in the worksheets
The practice usually begins with direct questions where both values are in the same unit, such as adding 450 g and 275 g. It then moves to mixed-unit problems, where children may need to convert 2 kg 300 g into grams, or rename 1750 g as 1 kg 750 g. Later questions include multi-step thinking, comparison words like heavier and lighter, and real-life decisions based on the final mass.
Parent practice routine
At home, ask your child to read the problem aloud, underline the quantities, and circle the unit. Before calculating, let them say the plan: “I will convert first,” or “I need to subtract to find the difference.” Use kitchen packets, fruit, or rice bags to discuss why 1000 g makes 1 kg. After solving, ask whether the answer should be in grams, kilograms, or both.

Classroom use for teachers
Teachers can use these printables for guided practice after teaching metric mass, as maths centre tasks, or as short revision sheets before assessments. They also work well for pair discussion: one child explains the operation, while the other checks the unit conversion and final statement. Mixed problems help reveal whether pupils are truly reading the situation or only applying the last operation taught.

Common errors to watch for
Children often add kilograms to grams without converting, write 100 g = 1 kg, or forget to regroup 1000 g as 1 kg. Some may choose addition whenever they see two numbers, even when the question asks “how much more” or “how much less.” Encourage neat columns, correct unit labels, and a final sentence such as “The total weight is 3 kg 250 g.”
Free printable PDF download
Use this Class 4 mass weight word problems 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 connect calculation with everyday measurement language, so children practise both maths and comprehension. A helpful child-friendly strategy is: Read, Mark, Convert, Solve, Check. This simple routine reminds learners to understand the story, handle units carefully, and check whether the answer is reasonable for the object being weighed.
Helpful answers
Frequently asked questions
What mass and weight skills do these Class 4 worksheets practise?
They practise solving word problems using kilograms and grams, including addition, subtraction, comparison, simple multiplication or division, and conversion between kg and g.
Should my child convert everything to grams first?
For many mixed-unit problems, converting to grams first makes the calculation easier and reduces mistakes. After solving, the answer can be written back in kg and g if needed.
What is the most important conversion for this topic?
Children must remember that 1 kilogram equals 1000 grams. This helps them regroup answers such as 1650 g into 1 kg 650 g.
How can I help if my child chooses the wrong operation?
Ask your child to explain what the question is asking: total, difference, equal groups, or amount left. Underlining words like total, more, less, each, and remaining can guide the correct operation.
Are these worksheets useful for real-life maths practice?
Yes. The problems use everyday contexts such as groceries, packets, recipes, and parcels, so children connect classroom maths with quantities they see around them.
Is this Class 4 mass weight word problems worksheet free?
Yes. You can preview it for free and use the printable worksheet for home or classroom practice.
Can I download this Class 4 mass weight word problems 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 4 mass weight word problems 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.