Addition and Subtraction

Year 1 MathsAddition and Subtraction3 pages

About this worksheet

A space-themed Year 1 maths worksheet on addition and subtraction. Pupils count and add aliens, complete number bonds to 20 such as 15 + ___ = 20, then solve rocket word problems and missing-number questions. An answer key is included. All questions follow the England National Curriculum for Key Stage 1 addition and subtraction.

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Curriculum objectives covered

Number — addition and subtraction

Represent and use number bonds and related subtraction facts within 20

The Number Bond Stars section drills bonds to 20 both ways.

Number — addition and subtraction

Add and subtract one-digit and two-digit numbers to 20, including zero

Alien Addition covers sums to 20 with counting support.

Number — addition and subtraction

Read, write and interpret mathematical statements involving addition (+), subtraction (-) and equals (=) signs

Missing-number equations ask pupils to read number sentences carefully.

What's inside this worksheet

Alien Addition

Picture-supported sums like 8 + 4 and 11 + 6.

Number Bond Stars

Missing-number bonds to 20, including related subtraction.

Rocket Subtraction Missions

One-step word problems and missing-number equations.

Answer key

Answers for every question.

How teachers use it

Independent practice

The three sections step up in difficulty, so most of the class can start together.

Homework

The space theme and picture support suit working without a teacher.

Early finishers

Keep the Rocket Missions page for pupils who race through core work.

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