Tuesday 10/17/17 – Math
Welcome to Math!
Please take out:
- Module 5 packet
- spiral notebook
5.1: Dividing Whole Numbers
Learning Target: Students will be able to fluently divide multi-digit numbers using the standard algorithm.
There are 10,845 books in a library. If 45 books can fit on a shelf, how many shelves are needed?
- In this problem, which number is the divisor? The dividend? How could we estimate the quotient?
Round each number to the tens, hundreds, thousands, ten thousands, and hundred thousands place:
How can you check your answer to a division problem?
Example 2, p. 109:
- What does the remainder mean in this problem?
- Which value represents the dividend? Which represents the divisor?
- Suppose Callie packs 10 books in each box. Will she have any books left over? How do you know?
What steps should be used when dividing large numbers?
- In a problem like 20 ÷ 5, which number goes inside the division house? What is this called? Which one goes outside? What is the name for this?
- When would you use an estimate for your answer instead of the actual quotient?
- You can use estimation to predict the approximate quotient of multi-digit whole numbers.
- Use long division to find exact quotients. Copy down these steps:
- Quotients sometimes include remainders “left over,” which can be written with an R or as a fraction.
Expected – 5.1 Practice
Accelerated – 5.1 Quiz
Expected & Accelerated:
- Finish dashboard assignments.
(Switch name cards for next class.)