Add three numbers up to two digits each

Learning Objectives Add three two-digit numbers using place value. Break apart numbers into tens and ones to add. Find sums that require regrouping in the ones place. Use different strategies, like making a ten, to add. Solve word problems by adding three two-digit numbers. Check their answers by adding in a different order. Ever wanted to count all your toys at once? 🧸🚗🧩 Let's learn how! We will learn to add three big numbers together. This helps you count things fast, like stickers or cookies! 🍪 It's a super skill. Real-World Applications Counting the total number of crayons in three boxes. 🖍️ Finding out how many points your team scored in three games. 🏀 Adding up the cost of three items at the toy store. 💰 Figuring out how many books you read o...

TermDefinitionExample SumThe answer you get when you add numbers together.In 10 + 5 = 15, the sum is 15. ✅ AddendsThe numbers you are adding together.In 10 + 15 + 20, the addends are 10, 15, and 20. Place ValueHow much a digit is worth based on its spot.In the number 47, the 4 is worth 40 (4 tens). The 7 is worth 7 (7 ones). Ones PlaceThe very first spot from the right in a number.In the number 62, the 2 is in the ones place. Tens PlaceThe second spot from the right in a number.In the number 62, the 6 is in the tens place. Regrouping (Carrying Over)Making a group of 10 ones to create a new ten.When adding 8 + 5, you get 13. That's 1 ten and 3 ones. You carry the 1 ten over. ➡️

Column Addition \begin{array}{@{}c@{\,}c} & T & O \ \hline & A & B \ + & C & D \ + & E & F \ \hline \end{array} Line up numbers by their tens and ones. Add the ones first, then add the tens. Order Doesn't Matter A + B + C = C + A + B You can add numbers in any order. The sum will always be the same! It's like a magic trick. 🎩 Grouping Numbers (A + B) + C = A + (B + C) You can group numbers to make adding easier. Add two numbers first, then add the third.