teaching resource

Identifying Prime and Composite Numbers – Worksheet

Updated: 09 Jan 2023

Use understanding of factors to identify composite and prime numbers with this worksheet.

Editable: Google Slides, PowerPoint
Non-Editable: PDF
Pages: 1 Page
Year: 6

Curriculum

VC2M6N02

Solve problems that require finding a familiar fraction, decimal or percentage of a quantity, including percentage discounts, choosing efficient calculation strategies with and without digital tools <ul> <li>explaining how 1/3 of a quantity can be achieved by dividing by 3, and how knowledge of 1/3 of a quantity can be used to find 2/3 or 4/3 of the same quantity, using situations involving money, length, duration, mass or capacity</li> <li>investigating percentage discounts of 10%, 25% and 50% in an online toy sale, using their equivalent decimal representations of 0.10, 0.25 and 0.50 to calculate the amount of discount on sale items, with and without digital tools</li> <li>linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding a 30% discount by using its equivalence to 0.3, dividing by 10 and multiplying the result by 3 to give 30%</li> <li>explaining the equivalence between percentages and fractions, for example,33 1/3% and 1/3, keeping to percentages that are equivalent to fractions with small denominators such as 66 2/3% and 12.5%</li> <li>representing a situation with a mathematical expression, for example, numbers and symbols such as 1/4 × 24, that involves finding a familiar fraction or percentage of a quantity; and using mental strategies or a calculator and explaining the result in terms of the situation in question</li> </ul>

teaching resource

Identifying Prime and Composite Numbers – Worksheet

Updated: 09 Jan 2023

Use understanding of factors to identify composite and prime numbers with this worksheet.

Editable: Google Slides, PowerPoint
Non-Editable: PDF
Pages: 1 Page
Year: 6

Use understanding of factors to identify composite and prime numbers with this worksheet.

Prime and Composite Numbers Worksheet

How well can your students identify prime and composite numbers? Do they need some additional practice determining if a number has 3 or more factors? Teach Starter has created a worksheet that your students can complete to strengthen their understanding of this skill.

With this worksheet, students will determine if a given number is prime or composite and use written expression skills to explain why a particular number is prime, composite, or neither.

An answer key is included with your download to make marking fast and easy!

Tips for Differentiation + Scaffolding

In addition to independent student work time, use this worksheet as an activity for:

guided maths groups
lesson wrap-up
fast finishers
homework assignment
whole-class review (via smartboard).

If there are students who need a bit of a challenge, encourage them to play a game together. Have a 100s board and counters. Set a timer for 1 minute, then have students place counters on all of the prime numbers they can in that time.

For students who need additional assistance with the content, provide them with a multiplication chart to help them determine if a number is prime or composite. Additionally, students can review prime and composite numbers with one of Teach Starter’s prime and composite posters.

🖨️ Easily Download & Print

Use the dropdown icon on the Download button to choose between the PDF or editable PowerPoint or Google Slides version of this resource.

To save paper, we suggest printing this 2-page worksheet double-sided.

This resource was created by Cassandra Friesen, a Teach Starter Collaborator.

Curriculum

VC2M6N02

Solve problems that require finding a familiar fraction, decimal or percentage of a quantity, including percentage discounts, choosing efficient calculation strategies with and without digital tools <ul> <li>explaining how 1/3 of a quantity can be achieved by dividing by 3, and how knowledge of 1/3 of a quantity can be used to find 2/3 or 4/3 of the same quantity, using situations involving money, length, duration, mass or capacity</li> <li>investigating percentage discounts of 10%, 25% and 50% in an online toy sale, using their equivalent decimal representations of 0.10, 0.25 and 0.50 to calculate the amount of discount on sale items, with and without digital tools</li> <li>linking percentages to their decimal equivalent of tenths and hundredths and using these to determine percentage discounts; for example, finding a 30% discount by using its equivalence to 0.3, dividing by 10 and multiplying the result by 3 to give 30%</li> <li>explaining the equivalence between percentages and fractions, for example,33 1/3% and 1/3, keeping to percentages that are equivalent to fractions with small denominators such as 66 2/3% and 12.5%</li> <li>representing a situation with a mathematical expression, for example, numbers and symbols such as 1/4 × 24, that involves finding a familiar fraction or percentage of a quantity; and using mental strategies or a calculator and explaining the result in terms of the situation in question</li> </ul>

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