Rounding Whole Numbers to the Nearest Ten

The video tutorial explains rounding numbers to the nearest ten, emphasizing its use in estimation. It introduces the concept of number lines, benchmarks, and midpoints to facilitate understanding. The tutorial provides a step-by-step guide to rounding, using examples like rounding 27 to 30. It also covers special cases, such as rounding numbers to 0 or 100, ensuring a comprehensive understanding of the topic.

Why do we use rounding in everyday problems?

• To complicate calculations

• To make numbers easier to use

• To avoid using number lines

• To get exact answers

What is a useful tool to visualize numbers for rounding?

• A ruler

• A number line

• A protractor

• A calculator

What is the midpoint between 20 and 30?

• 24

• 22

• 25

• 27

Which step involves finding the benchmarks for rounding?

• Step 2

• Step 4

• Step 1

• Step 3

If a number is less than the midpoint, what should you do?

• Round up

• Round down

• Double the number

• Keep the number the same

What is the nearest 10 to 27?

• 30

• 25

• 35

• 20

What are the benchmarks for rounding the number 4?

• 5 and 10

• 10 and 20

• 0 and 10

• 0 and 5

To which number does 4 round to the nearest 10?

• 15

• 10

• 5

• 0

What are the benchmarks for rounding the number 96?

• 95 and 100

• 80 and 90

• 90 and 100

• 100 and 110

To which number does 96 round to the nearest 10?

• 90

• 95

• 105

• 100