Dividing with Two-Digit Divisors
Grade 5 · Math · Division Strategies · North Carolina, USA
Lesson Summary
Divide by two-digit numbers using estimation and long division.
Explanation
Dividing by a two-digit number uses the same long-division steps, but you may need to estimate how many times the divisor fits into each group of digits. A good trick is to round the divisor to the nearest ten to make your estimate, then check by multiplying. If the estimate is too big or too small, adjust by one. With practice, estimating becomes faster and easier.
Practice Questions
Q1: What is 672 / 21?
Answer: 32. Estimate: 21 is close to 20. 20 x 30 = 600. Try 32: 21 x 32 = 672. It fits exactly.
Q2: What is 540 / 15?
Answer: 36. 15 x 36 = 540. You can also think 15 x 30 = 450, 540 - 450 = 90, 15 x 6 = 90, so 30 + 6 = 36.
Q3: What is 828 / 12?
Answer: 69. 12 x 69 = 828. Step by step: 12 into 82 is 6 (72), remainder 10, bring down 8 to get 108, 12 into 108 is 9.
People Also Ask
What is Dividing with Two-Digit Divisors in Grade 5 Math?+
Dividing with Two-Digit Divisors is a lesson in the Division Strategies chapter of Grade 5 Math. It is part of the North Carolina, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Dividing with Two-Digit Divisors?+
Dividing with Two-Digit Divisors is taught in Grade 5 as part of the Math curriculum in North Carolina, USA.
How can I help my child with Division Strategies 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 Division Strategies topics.