Rounding money amounts

Learning Objectives Identify the cents part of a money amount to decide whether to round up or down. Round a money amount to the nearest dollar. Identify the ones place of a dollar amount to round to the nearest ten dollars. Round a money amount to the nearest ten dollars. Use a number line to visualize which dollar or ten-dollar amount is closer. Explain why rounding money is useful for making quick estimates. Solve simple word problems that require rounding money amounts. Have you ever wanted to buy a toy and wondered if you had *about* enough money in your piggy bank? 🐷 Today, we will learn how to round money! Rounding makes numbers simpler and easier to work with. It's a super skill for quickly guessing the total cost of things when you're shopping. Real-W...

TermDefinitionExample RoundingMaking a number simpler while keeping its value close to what it was. It's like finding the 'closest' friendly number.If a candy bar costs $0.98, you can say it costs 'about $1.00'. EstimateA close guess of an actual value, often found by rounding.If you have $4.25 and your friend has $5.90, you can estimate you have about $4 + $6 = $10 together. Dollar ($)The main unit of money we use. It is made up of 100 cents.$5.00 is five dollars. Cents (¢)The coins that are parts of a dollar. The numbers after the decimal point show the cents.In $7.45, the .45 means 45 cents. Nearest DollarThe whole dollar amount (like $3.00 or $4.00) that is closest to the original money amount.$3.89 is closest to the nearest dollar of $4.00. Nearest Ten Dollar...

Rounding to the Nearest Dollar Look at the cents. If Cents \ge 50¢, round up. If Cents \le 49¢, round down. Use this rule when you want to find the closest whole dollar. Look at the two digits after the decimal point. If they are 50 or more, you go up to the next dollar. If they are 49 or less, you keep the dollar amount the same. Rounding to the Nearest Ten Dollars Look at the ones place digit. If Digit \ge 5, round up. If Digit \le 4, round down. Use this rule when you want to find the closest ten-dollar bill amount. Look at the digit just before the decimal point. If it's 5, 6, 7, 8, or 9, you go up to the next 'ten'. If it's 4, 3, 2, or 1, you go down to the lower 'ten'.