Regrouping in Subtraction
Grade 2 · Math · Addition and Subtraction Within 100 · Yukon, Canada
Lesson Summary
Learn how to subtract when the top digit in the ones place is smaller than the bottom digit.
Explanation
Sometimes you can't subtract the ones because the top number is too small. In 42 - 17, you can't take 7 from 2. So you borrow a ten from the 4, turning it into 3 tens, and add 10 to the ones, making it 12. Now subtract: 12 - 7 = 5 for the ones, and 3 - 1 = 2 for the tens. The answer is 25.
Practice Questions
Q1: What is 53 - 28?
Answer: 25
Q2: What is 71 - 34?
Answer: 37
Q3: What is 60 - 25?
Answer: 35
People Also Ask
What is Regrouping in Subtraction in Grade 2 Math?+
Regrouping in Subtraction is a lesson in the Addition and Subtraction Within 100 chapter of Grade 2 Math. It is part of the Yukon, Canada school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Regrouping in Subtraction?+
Regrouping in Subtraction is taught in Grade 2 as part of the Math curriculum in Yukon, Canada.
How can I help my child with Addition and Subtraction Within 100 in Math?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Addition and Subtraction Within 100 topics.