Adding and Subtracting Decimals Worksheet

Are you looking for a fun activity your students can complete to practise their decimal computation skills? This fun mystery image worksheet will give your students plenty of practice while using the colour guide to reveal a mystery image. Since this worksheet has quite a few problems, consider using this as a fast-finisher activity or something that students can work on throughout the week.

With this colour-by-number worksheet, students will practise solving problems that involve adding and subtracting decimals through the hundredths place. 

This adding and subtracting decimals worksheet downloads as a printable PDF or editable Google Slides version. An answer key is included with your download to make marking fast and easy! 

Differentiated Versions of This Adding and Subtracting Decimals Worksheet

To make differentiation easier, we’ve created two versions of these adding and subtracting decimals mystery pictures. The level is marked by stars in the upper right-hand corner. The lower-level version has one star, and the on-level version is marked with two stars. The included color key can be used for both levels.

Encourage students who need a bit of a challenge to use the 2 ★star★ version of this resource. The problems on this version are mainly those that require regrouping. Students can also try to make their own mini mystery image worksheet for a classmate to solve.

For students who need a bit of support, consider using the 1 ★star★ version of this resource. This level is limited to addition and subtraction problems without regrouping. Additionally, this activity can be completed over time rather than in one sitting.

Download and Print to Add and Subtract Decimals

Use the dropdown icon on the Download button to choose between the PDF or editable Google Slides version of this resource. You will be prompted to make a copy of the Google Slides file to your own drive before accessing it.

Because this resource includes an answer sheet, we recommend you print one copy of the entire file. Then, make photocopies of the blank worksheet for students to complete. 

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

Decimal Operations Resources at Your Fingertips

Don’t stop there! We’ve got more teacher-created, curriculum-aligned activities to complement your maths lessons on decimal operations:

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Adding and Subtracting Decimals Dominoes for Year 6

Use this year 6 maths game of dominoes to strengthen computation skills by adding and subtracting decimals through the thousandths place.

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Decimal Exit Tickets (Place Value, Rounding, Ordering and Computation)

Assess student understanding of decimal place value, rounding, ordering and computation with this set of 21 exit tickets.