Add four or more one-digit numbers

Learning Objectives Add a column of four one-digit numbers. Identify pairs of numbers that add up to 10. Use the 'making a ten' strategy to add faster. Group doubles or near doubles to simplify addition. Add five or more one-digit numbers in a sequence. Check their addition work for accuracy. You have 4 red crayons 🖍️, 2 blue crayons 🖍️, 3 green crayons 🖍️, and 1 yellow crayon 🖍️. How many do you have in all? Today, we will learn a super skill! We will add many small numbers together. This helps us count things very quickly. Real-World Applications Counting the total number of fruits in a basket 🍎🍌🍇🍊 Adding up scores for players in a board game 🎲 Figuring out how many toys you and your friends have together 🧸🚗⚽️ Counting the total number of stick...

TermDefinitionExample AddendAn addend is any number that you are adding. It's a piece of the puzzle! 🧩In 2 + 3 + 4 + 5, the addends are 2, 3, 4, and 5. SumThe sum is the total you get after adding all the numbers. It's the answer! 🏆In 2 + 3 + 1 = 6, the sum is 6. Making a TenThis is a trick where you find two numbers that add up to 10 first. It makes adding easier! 🤩In 8 + 5 + 2, you can add 8 + 2 first to make 10. Column AdditionThis is when we write numbers on top of each other to add them. It keeps our work neat. 📝Adding 1, 4, 5, and 2 looks like this: 1 4 5 + 2 --- DoublesDoubles are when you add the same number to itself. Like 3 + 3 or 5 + 5. They are easy to remember! 👯In 4 + 2 + 4, you can add the doubles 4 + 4 first to get 8.

The 'Making a Ten' Strategy Find a + b = 10. Then add the rest. (a + b) + c + d = 10 + c + d Look for pairs like 1+9, 2+8, 3+7, 4+6, or 5+5. Add them first to make your problem simpler. The 'Grouping Doubles' Strategy Find a + a. Then add the rest. (a + a) + b + c If you see two of the same number, add them together first. It's fast because you know your doubles facts! The 'Order Doesn't Matter' Rule a + b + c = c + a + b You can add the numbers in any order you want! Pick the easiest pairs to add first.