Addition and subtraction - ways to make a number

Learning Objectives Identify different pairs of numbers that add up to a target number (up to 20). Write at least two addition sentences for a given number. Write at least two subtraction sentences related to an addition fact. Use a number bond to show parts and a whole. Find a missing part in an addition or subtraction sentence. Explain that addition and subtraction are related. You have 10 shiny stickers! ✨ How many ways can you put them into two groups? Today, we will be super number detectives! 🕵️ We will find all the secret ways to make a number using adding and subtracting. This helps us solve problems much faster! Real-World Applications Sharing snacks with a friend 🍪 Putting away your toys into two boxes 🧸 Counting how many more points you need in a game...

TermDefinitionExample WholeThe total number of things you have all together.If you have 5 red apples and 2 green apples, the whole is 7 apples. 🍎🍎🍎🍎🍎 + 🍏🍏 = 7️⃣ PartA smaller number that makes up a piece of the whole.In a group of 7 apples, the 5 red apples are a part. The 2 green apples are another part. Number BondA picture that shows how parts make a whole.A circle with 9 in it, connected to two smaller circles with 4 and 5. This shows 4 and 5 are parts that make the whole, 9. Number SentenceA math problem with numbers and signs like + or -.6 + 3 = 9 is an addition number sentence. 9 - 3 = 6 is a subtraction number sentence. Fact FamilyA group of four math facts that use the same three numbers.For numbers 2, 8, and 10: 2+8=10, 8+2=10, 10-2=8, 10-8=2. They are all in the same fam...

Part-Part-Whole (Addition) Part + Part = Whole When you know two small parts, you add them together to find the big whole number. Whole-Part-Part (Subtraction) Whole - Part = Part When you know the whole and one part, you subtract to find the other missing part. The Flip-Flop Rule (Commutative Property) a + b = b + a You can add numbers in any order and get the same answer! 3 + 4 is the same as 4 + 3.