Rounding Numbers and Benchmark Values

This video tutorial teaches how to round numbers using a number line. It covers the concept of benchmark numbers and midpoints, explains common mistakes in rounding, and provides examples of rounding to the nearest hundred, ten, and ten thousand. The tutorial emphasizes understanding the increments on a number line and how they relate to the place value being rounded.

What is the main focus of the lesson introduced at the beginning of the video?

• Using a number line to add numbers

• Using a number line to round numbers

• Using a number line to multiply numbers

• Using a number line to subtract numbers

What are the benchmark numbers for 783 on a number line?

• 750 and 800

• 700 and 900

• 750 and 850

• 700 and 800

What is a common mistake students make when using a number line for rounding?

• Always counting by ones

• Always counting by tens

• Always counting by thousands

• Always counting by hundreds

When rounding 42,783 to the nearest hundred, which digit do you focus on?

• The digit in the tens place

• The digit in the thousands place

• The digit in the hundreds place

• The digit in the ones place

What are the benchmark numbers when rounding 42,783 to the nearest hundred?

• 42,700 and 42,800

• 42,750 and 42,850

• 42,600 and 42,700

• 42,800 and 42,900

When rounding 42,783 to the nearest ten, which digit do you focus on?

• The digit in the ones place

• The digit in the thousands place

• The digit in the hundreds place

• The digit in the tens place

What are the benchmark numbers when rounding 42,783 to the nearest ten?

• 42,770 and 42,780

• 42,790 and 42,800

• 42,780 and 42,790

• 42,760 and 42,770

When rounding 365,721 to the nearest ten thousand, which digit do you focus on?

• The digit in the ones place

• The digit in the ten thousands place

• The digit in the hundreds place

• The digit in the thousands place

What are the benchmark numbers when rounding 365,721 to the nearest ten thousand?

• 360,000 and 370,000

• 365,000 and 375,000

• 370,000 and 380,000

• 355,000 and 365,000

What happens to the digits when a number is rounded up?

• They all increase by one

• They all decrease by one

• They turn into zeros

• They remain the same