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Maths•Lower Primary Operations

Addition with regrouping

Lower Primary 6 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
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What addition with regrouping means

You add two-digit numbers by working with the ones first and then the tens. If the ones make 10 or more, you carry one ten to the next place so your answer is correct.

What you will practise

  • Add the ones digits and carry one ten when needed.
  • Combine the tens digits after carrying.
  • Choose the correct final two-digit sum.
  • Check answers by splitting numbers into tens and ones.

Before you start

You should be comfortable with counting forward and recognising tens and ones in two-digit numbers. It also helps to know basic addition facts within 10.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

27 + 15 = ?

  • 32
  • 42
  • 41
  • 52
Answer: 42

Working: 7 + 5 = 12, write 2 carry 1; 2 + 1 + 1 = 4, so 42.

Common mistakes to avoid

  • Adding the tens first and forgetting the carried ten from the ones.
  • Writing the carried 1 in the ones place instead of above the tens.
  • Leaving out the carry when the ones add to 10 or more.
  • Misreading tens and ones, so the digits are placed in the wrong columns.

Curriculum and exam alignment

Ghana GES Basic 1 to 3 syllabusSchool-based assessment

This usually appears in Lower Primary when learners move from simple addition to column addition with carrying. It supports classwork, school-based continuous assessment, and end-of-term tests.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.

Related skills

Other Lower Primary Operations skills in Maths, at the same point in the course.

Other Maths topics

Counting with PicturesPicture Addition & SubtractionEarly NumeracyNumber BasicsSHS Core MathematicsUniversity Mathematics

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Exams that assess addition with regrouping

Lower Primary work on this skill feeds directly into these exam papers. Each page lists the Maths topics that appear on it.

GESGES practice questionsFree GES practice across the subjects at this stage, with worked answers.BECEBECE practice questionsListed as a related subject on the BECE practice page.WASSCEWASSCE practice questionsListed as a related subject on the WASSCE practice page.

How this page was produced

This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.

Written by
DigiTransact Mastermind editorial team
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Practise addition with regrouping

6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.

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