Subtracting Within 20
Grade 1 · Math · Subtraction · Alaska, USA
Lesson Summary
Practice subtracting with numbers up to 20.
Explanation
Subtracting bigger numbers works the same way as smaller ones. You can count back or use a number line to help. For a problem like 15 − 7, try breaking it into steps: first subtract to get to 10 (15 − 5 = 10), then subtract 2 more to get 8. Breaking the problem into smaller steps makes it easier to solve.
Practice Questions
Q1: What is 14 − 6?
Answer: 8
Q2: What is 17 − 9?
Answer: 8
Q3: What is 13 − 5?
Answer: 8
People Also Ask
What is Subtracting Within 20 in Grade 1 Math?+
Subtracting Within 20 is a lesson in the Subtraction chapter of Grade 1 Math. It is part of the Alaska, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Subtracting Within 20?+
Subtracting Within 20 is taught in Grade 1 as part of the Math curriculum in Alaska, USA.
How can I help my child with Subtraction 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 Subtraction topics.