Mastering Rounding Off Numbers

The video tutorial explains the concept of rounding off numbers, providing examples of rounding to the nearest ten and hundred. It highlights the importance of rounding in everyday situations, such as estimating the number of guests at a party or planning for a school event. The tutorial also covers practical applications of rounding, emphasizing its usefulness in making quick and efficient estimates.

Why do we round off numbers?

• To decrease the value of numbers

• To increase the value of numbers

• To get a number that is easier to work with

• To find the exact number

What is the rounded off value of 8 to the nearest ten?

• 0

• 15

• 5

• 10

How is the number 12 rounded off?

• To 10

• To 15

• To 20

• To 5

What is 203 rounded off to the nearest ten?

• 210

• 215

• 205

• 200

Round off 486 to the nearest ten.

• 495

• 490

• 485

• 480

What is the estimate of 1263 when rounded to the nearest hundred?

• 1200

• 1250

• 1350

• 1300

When rounding off large numbers, to what do we usually round them?

• To the nearest million

• To the nearest thousand

• To the nearest hundred

• To the nearest ten

How is 78 rounded off to the nearest hundred?

• 50

• 70

• 80

• 100

What is the correct rounding off of 331 to the nearest hundred?

• 300

• 400

• 330

• 350

Why is rounding off numbers useful in planning events?

• To spend more money

• To make calculations harder

• To avoid over-preparation

• To ensure exact numbers