Adding More Than Two Numbers: Become an Addition Ace!

Math Grades 1st Grade 4:45 Video
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Lesson Description

Learn how to add more than two numbers together using strategies like making ten and lining up place values! This lesson makes adding fun and easy!

Video Resource

How to Add More than Two Terms

Miacademy Learning Channel

Duration: 4:45
Watch on YouTube

Key Concepts

  • Place Value (ones and tens)
  • Adding multiple numbers
  • Making Ten (as a strategy)
  • Carrying Over

Learning Objectives

  • Students will be able to add three or more single-digit and double-digit numbers together.
  • Students will be able to use the 'making ten' strategy to simplify addition problems.
  • Students will understand the importance of lining up numbers by place value when adding.

Educator Instructions

  • Introduction (5 mins)
    Begin by reviewing basic addition facts (1+1 to 10+10). Ask students if they've ever tried adding more than two numbers at once. Briefly introduce the concept of adding multiple numbers and explain that they'll learn some tricks to make it easier.
  • Video Viewing (7 mins)
    Show the Miacademy Learning Channel video: 'How to Add More than Two Terms'. Instruct students to pay close attention to how Ashley lines up the numbers and uses the 'making ten' strategy.
  • Guided Practice (10 mins)
    Work through the examples from the video on the board, step-by-step. Emphasize the importance of lining up the ones place and tens place correctly. Demonstrate the 'making ten' strategy and how to carry over when the sum of the ones place is greater than 9.
  • Independent Practice (10 mins)
    Provide students with worksheets containing addition problems with three or four numbers. Include problems with both single-digit and double-digit numbers. Encourage them to use the strategies learned in the video (lining up place values, making ten). Circulate to provide assistance as needed.
  • Wrap Up and Assessment (8 mins)
    Review the key concepts of the lesson. Ask students to share their strategies for adding multiple numbers. Administer the multiple-choice and fill-in-the-blank quizzes to assess their understanding.

Interactive Exercises

  • Number Line Addition
    Use a number line to visually represent adding multiple numbers. Start at the first number, then jump forward the amount of the second number, and so on. This helps students visualize the addition process.
  • Manipulative Addition
    Use base ten blocks or other manipulatives to represent the numbers and physically combine them to find the sum. This is especially helpful for understanding place value and carrying over.

Discussion Questions

  • Why is it important to line up the numbers by place value when adding?
  • How does 'making ten' help you add numbers more easily?
  • What do you do when the sum of the ones place is greater than 9?

Skills Developed

  • Addition fluency
  • Place value understanding
  • Problem-solving strategies
  • Attention to Detail

Multiple Choice Questions

Question 1:

What is 2 + 3 + 5?

Correct Answer: 10

Question 2:

What is 1 + 4 + 6?

Correct Answer: 11

Question 3:

What is 7 + 2 + 1?

Correct Answer: 10

Question 4:

What is 3 + 3 + 4?

Correct Answer: 10

Question 5:

What is 5 + 0 + 5?

Correct Answer: 10

Question 6:

When you add 10 + 2 + 3, what is the answer?

Correct Answer: 15

Question 7:

You have 4 cookies, and your friend gives you 3 more, and then another friend gives you 2 more. How many cookies do you have?

Correct Answer: 9

Question 8:

What is 20 + 0 + 0?

Correct Answer: 20

Question 9:

If you have 5 fingers on one hand, and 5 on the other, and 5 on another friend's hand, how many fingers are there?

Correct Answer: 15

Question 10:

Which of these is 5+5+5?

Correct Answer: 15

Fill in the Blank Questions

Question 1:

When adding numbers, it's important to line up the _____ place.

Correct Answer: ones

Question 2:

If you add 6 + 4, you can make a _____

Correct Answer: ten

Question 3:

When adding 9 + 1 + 3, the answer is _____

Correct Answer: 13

Question 4:

If the ones place adds up to more than 9, you need to _____ over.

Correct Answer: carry

Question 5:

2 + 2 + 2 = _____

Correct Answer: 6

Question 6:

If you add 8 + 2 + 5, you get _____.

Correct Answer: 15

Question 7:

When adding many numbers, it helps to look for numbers that make a _____

Correct Answer: ten

Question 8:

If you have 3 cats, then you get 1 more and then 2 more, you now have _____ cats.

Correct Answer: 6

Question 9:

When you add 10 + 5 + 2, the answer is _____

Correct Answer: 17

Question 10:

If I have 4 candies and receive 6 more candies, and receive 2 more candies, then I have _____ total candies.

Correct Answer: 12

Educational Standards

CCSS.Math.Content.1.OA.A.2:Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. CCSS.Math.Content.1.NBT.C.4:Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten. CCSS.Math.Content.1.OA.B.3:Apply properties of operations as strategies to add and subtract. (Students need not use formal terms for these properties.) Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

Teaching Materials

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