This grade 2 add within 100 quiz asks 10 multiple-choice questions on adding within 100, and each answer comes with a short explanation.
Try these 10 multiple choice questions on adding two-digit numbers, regrouping, and adding three or four numbers. Choose the one correct answer, then read the explanation.
🎉 Quiz complete!
How does this quiz work?
Read each question, choose one answer among A, B, C and D, then check it: a short explanation appears after every answer. Your score out of 10 is shown at the end, and you can restart the quiz as often as you like.
What should you review before the quiz?
Reread the key facts of the lesson and the worked example. If a question is hard, go back to the matching part of the lesson, then try the quiz again. Write your work on scrap paper: most mistakes come from skipping a step, not from the idea itself.
Remember:
- Add tens to tens and ones to ones, then combine the parts.
- Regroup when the ones make 10 or more: 10 ones become 1 ten.
- An open number line adds by jumping tens first and then ones.
- Numbers can be added in any order, so group the easy pairs first.
- Add three or four two-digit numbers two at a time.
How to use this grade 2 add within 100 quiz
Retake this grade 2 add within 100 quiz until every answer is right, then move on to the worksheet and the test.
See every chapter on the Grade 2 math page.



















