Related addition facts

Learning Objectives Identify the addends and the sum in an addition sentence. Explain that changing the order of addends does not change the sum. Write the 'turn-around' fact for a given addition fact. Use objects or drawings to show a pair of related addition facts. Solve for the sum in a pair of related addition facts. Complete a pair of related addition facts with a missing number. If you have 3 red balls 🔴 and 4 blue balls 🔵, is that the same as 4 blue balls 🔵 and 3 red balls 🔴? Let's find out! 🤔 We will learn about 'turn-around' facts! These are addition facts that are partners. Knowing this trick makes adding much easier and faster! ✨ Real-World Applications Sharing snacks with a friend 🍪 Putting away your toys 🧸 Counting diffe...

TermDefinitionExample AddendsThe numbers you add together. They are the parts.In 2 + 5 = 7, the addends are 2 and 5. 🍓🍓 + 🍓🍓🍓🍓🍓 SumThe answer you get when you add. It is the whole amount.In 2 + 5 = 7, the sum is 7. 🍓🍓🍓🍓🍓🍓🍓 Addition SentenceA math sentence that uses a plus sign (+) and an equal sign (=).4 + 3 = 7 is an addition sentence. Related Addition FactsTwo addition sentences that use the same numbers but in a different order.6 + 1 = 7 and 1 + 6 = 7 are related addition facts. Turn-Around FactsA fun name for related addition facts. The addends 'turn around'!The turn-around fact for 3 + 8 = 11 is 8 + 3 = 11. 🔄

The Turn-Around Rule a + b = b + a This rule says you can add numbers in any order. The sum will always be the same! Finding the Partner Fact If you know a + b = c, then you also know b + a = c. When you see one addition fact, you can find its partner. Just flip the first two numbers.