Addition facts - sums up to 20

Learning Objectives Recall addition facts with sums to 10. Use the 'counting on' strategy to add. Use a number line to find sums up to 20. Solve simple addition word problems. Identify and solve 'doubles facts' (like 7 + 7). Use the 'make a ten' strategy to add. Fluently add numbers with sums up to 20. You have 8 red apples 🍎 and 6 green apples 🍏. How many apples do you have in all? Today, we will learn to add numbers together up to 20! 🔢 This is a super skill. It helps us count groups of things very fast. Real-World Applications Counting your toys 🧸 Sharing snacks with a friend 🥨 Adding scores in a fun game 🎲 Counting kids at a birthday party 🎈

TermDefinitionExample AddendAn addend is any number that you are adding. ➕In the problem 5 + 3 = 8, the numbers 5 and 3 are the addends. SumThe sum is the total you get when you add numbers. ✅In the problem 5 + 3 = 8, the number 8 is the sum. Plus Sign (+)This symbol tells us to add numbers together.When you see 7 + 2, the plus sign means 'add 7 and 2'. Equals Sign (=)This symbol means 'is the same as'. It shows the answer.In 9 + 1 = 10, the equals sign shows that 9 + 1 is the same as 10. Counting OnA way to add by starting with one number and counting up.For 8 + 3, you start at 8 and count up three times: '9, 10, 11'. Doubles FactA doubles fact is when you add a number to itself. 👯6 + 6 = 12 is a doubles fact. So is 9 + 9 = 18.

Turn-Around Facts (Commutative Property) a + b = b + a You can add numbers in any order and get the same sum. So, 4 + 8 is the same as 8 + 4. Adding Zero a + 0 = a When you add zero to any number, the number stays the same. It's like adding nothing! 15 + 0 = 15. Making a Ten Strategy 9 + 5 = (9 + 1) + 4 = 10 + 4 = 14 Break apart the smaller number to make a ten first. This can make big problems easier to solve.