NumberP6 level15 questions in the full course
A building block for the test. SEAG doesn't test this topic on its own, but questions on tested topics rely on it. If it's shaky, it's worth securing, without spending long on it.

Addition Facts to 20SEAG Practice Questions

Quickly recall addition facts with totals up to 20.

Where your child meets this in real life: Quick mental calculations in shopping, games, or everyday counting

What your child needs to know

In the SEAG test

This topic isn't tested on its own, but it sits inside questions on tested topics. Each SEAG paper has 28 maths questions. Questions 29 to 50 are multiple choice with five possible answers, and questions 51 to 56 need a short written answer. With 56 questions in 60 minutes across English and maths, that is about a minute per question.

SEAGReady breaks addition facts to 20 into 2 steps, taught in order so each skill builds on the last.

  1. 1

    Sums Within 10

    Recall addition facts where the sum is 10 or less (e.g., 3 + 4 = 7)

  2. 2

    Sums Bridging 10

    Recall addition facts where the sum is between 11 and 20 (e.g., 8 + 5 = 13)

Try these SEAG-style questions

Try three free questions from our addition facts to 20 course. They start easy and get harder, so you can see where your child's confidence runs out. If they manage the last one without a hint, this topic is probably secure. If not, the steps above show where to start.

Question 1Confidence builder

Olivia has 4 red apples. She picks 3 more green apples. How many apples does she have altogether?

A ten-frame contains four red counters for the red apples and three green counters for the green apples, without stating the total.
Answer choices for question 1
Question 2Standard

Rebecca collects 6 shells at the beach. Later she finds 8 more shells. How many shells does she have altogether?

Two ten-frames contain six blue counters and eight green counters, showing how the added group crosses ten without stating the total.
Answer choices for question 2
Question 3Stretch

Roisin has some coins in her piggy bank. She has 8 ten-pence coins and 9 five-pence coins. How many coins does she have in total?

Answer choices for question 3

Try the lesson: Sums Within 10

This is the exact interactive worked example your child sees in SEAGReady. Step through it and watch the method build up.

Lucy has 4 red apples in her bag. She picks 5 more green apples from the tree.

How many apples does Lucy have altogether?

4 + 5

Show the two parts
1

Start with the 4 red apples.

4

Step 1 of 4

Prefer to read? See every step written out

Lucy has 4 red apples in her bag. She picks 5 more green apples from the tree.

How many apples does Lucy have altogether?

  1. 1

    Show the two parts

    • Start with the 4 red apples.4
    • Add the 5 green apples to the same ten-frame.4 + 5
  2. 2

    Combine the parts

    • Nine spaces are filled altogether.
    • Write the complete addition fact.4 + 5 = 9

Lucy has 9 apples altogether.

The key insight: Number bonds within 10 are facts you can recall instantly!

Common mix-up: 4 + 5 = 8. Counting on fingers but starting from 4 instead of the next number.

Mistakes to watch for

These are the misconceptions we see most often in addition facts to 20, including the ones our practice questions are specifically designed to catch.

  • Counting on fingers for basic facts
  • Confusing near-doubles
  • Not using 'make 10' strategy effectively

More number practice

Read & Write Whole NumbersIdentify Place Value of a DigitCompare Two Whole NumbersOrder a Set of Whole NumbersSubtraction Facts Within 20Add 2-Digit Numbers (No Carry)

Sitting the SEAG test this November? Read our last-month revision plan, Paper 1 vs Paper 2 and test day guide.

15 questions on this topic alone

Master addition facts to 20 and everything it unlocks

SEAGReady finds the exact step where your child gets stuck, teaches it with worked examples like the one above, and brings it back for review so it sticks.

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