Rounding Numbers with Desmos

This lesson demonstrates how to use Desmos to round numbers to different decimal places. It covers identifying place values and using Desmos' graphing calculator to round numbers like 5748.3964. The tutorial explains rounding to the ones, tenths, hundredths, and thousandths place values, highlighting a minor issue with Desmos' rounding feature. The video concludes with a summary of the rounded values and observations.

What is the main purpose of using Desmos in this lesson?

• To learn how to graph equations

• To solve algebraic expressions

• To understand how to round numbers

• To calculate complex integrals

Which digit determines whether to round up or down?

• The digit to the left of the rounding place

• The first digit of the number

• The digit in the rounding place

• The digit to the right of the rounding place

What is the first step in using Desmos to round a number?

• Enter the number with commas

• Open the graphing calculator

• Select the 'solve' function

• Type the number in scientific notation

Why can't commas be used when entering numbers in Desmos for rounding?

• Commas are only for large numbers

• Commas are not recognized by Desmos

• Commas cause the function to malfunction

• Commas are used for separating functions

What does changing the zero to a one in the Desmos function do?

• Rounds the number to the tenths place

• Rounds the number to the thousandths place

• Rounds the number to the nearest hundred

• Rounds the number to the nearest integer

What issue is noted when rounding to the hundredths place in Desmos?

• The number is displayed incorrectly

• The number is rounded to the thousandths place

• The number is not rounded at all

• The number is rounded to the tenths place instead

What is the correct representation for a number rounded to two decimal places?

• It should have one decimal place

• It should have two decimal places

• It should have no decimal places

• It should have three decimal places

Why is it important to include a zero in the hundredths place?

• To ensure the number is rounded to the hundredths place

• To avoid rounding errors

• To make the number look larger

• To indicate rounding to the tenths place

What is the rounded value of 5748.3964 to the ones place?

• 5748

• 5749

• 5747

• 5746

What is the rounded value of 5748.3964 to the thousandths place?

• 5748.396

• 5748.394

• 5748.397

• 5748.395