Add three one-digit numbers: word problems

Learning Objectives Read and understand a word problem. Find the three important numbers in a story. Write an addition equation from the problem. Use a strategy, like making a ten, to add. Solve the problem to find the total. Write the final answer with a label (like '9 cats'). You see 2 red birds 🐦, 4 blue birds 🐦, and 3 yellow birds 🐦. How many birds are there in all? Today, we will solve fun story problems! We will learn to add three small numbers together. Let's be math detectives and find the answers! 🕵️‍♂️ Real-World Applications Counting your different colored crayons 🖍️ Sharing different kinds of snacks with friends 🥨🍪🍎 Counting animals you see at a farm 🐔🐷🐑 Adding up points in a game 🎲

TermDefinitionExample Word ProblemA math story that asks a question.Mia has 3 red balls 🔴, 2 blue balls 🔵, and 1 green ball 🟢. How many balls does she have in all? AddTo put numbers together to find the total. The symbol is +.We add 3 + 2 + 1 to find the total number of balls. EquationA math sentence that uses an equals sign (=).The equation for the ball problem is 3 + 2 + 1 = 6. Sum / TotalThe answer you get when you add numbers together.In 3 + 2 + 1 = 6, the sum (or total) is 6. KeywordsWords in a story that tell you to add.Look for words like 'in all', 'altogether', and 'total'. One-Digit NumberAny number from 0 to 9.The numbers 2, 5, and 8 are all one-digit numbers.

Any Order Rule (Commutative Property) a + b + c = c + a + b You can add numbers in any order. Add the easiest pairs first! Grouping Rule (Associative Property) (a + b) + c = a + (b + c) You can group numbers to make adding easier. First add two numbers, then add the third. Make a Ten Strategy Find a + b = 10, then add c Look for two numbers that add up to 10. This makes the problem much simpler to solve.