Adding and Subtracting Decimals — 2 Interactive Lessons & Worksheet (Year 7)

Do your students line up the decimal points? This product gives you two interactive lessons on adding and subtracting decimals, plus a worksheet.

Mastering Adding and Subtracting Decimals in Year 7 Maths

The adding lesson (27 slides) and the subtracting lesson (33 slides) teach the formal written methods, starting with lining up the decimal points. Students work out sums such as 0.523 + 0.45 and 2.80 + 5.219 + 0.520, subtract with an exchange, as in 142.84 − 15.22 = 127.62, and solve word problems with money, such as cinema tickets and change from a £10 note.

What’s Included

• Two interactive lessons: adding decimals (27 slides) and subtracting decimals (33 slides)
• Learning objectives on formal methods and word problems with money
• Worked examples that show lining up the decimal points
• Fill-in-the-blank questions with instant feedback
• A printable worksheet with an answer page

Key Benefits for Students

• Builds a reliable written method for decimals
• Practises carrying and exchanging
• Applies decimals to money problems
• Instant feedback on answer questions

Why Teachers Love It

• No prep — two ready-made lessons in one purchase
• The worksheet gives extra printable practice
• Self-marking questions support independent practice
• Suits teaching, revision and homework
• Covers both operations with decimals

Love this? You’ll love…

• Converting Percentages to Decimals — Interactive Lesson (Ages 11–14)
• Rounding to Decimal Places — Interactive Lesson (Ages 11–14)
• Rounding to 1 Significant Figure — Interactive Lesson (Ages 11–14)

A dependable addition to a Year 7 number unit, giving students a clear written method for both addition and subtraction of decimals. Secure decimal arithmetic supports measures, money and later algebra.

Build confident decimal skills today — Add to Basket.

FAQ

What year group is this for? Year 7 (ages 11–12), KS3.

What is included? Two interactive lessons and a printable worksheet with answers.

Is it self-marking? Yes, with instant feedback on the lesson questions.