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Adding Using Chart

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Team Digital
Adding Using Chart
CCSS.MATH.CONTENT.1.OA.A.2

Basics on the topic Adding Using Chart

The hundreds chart is an incredible tool to help solve problems, see patterns, or even just count! The hundreds chart is organized with numbers one through one hundred in columns and rows. How do you add using a chart?

  • Always start by circling the bigger addend, or number on the chart.

  • Next, count on the amount of the second addend or number.

  • Finally, the number that you land on is the sum, or answer.

Transcript Adding Using Chart

: "I can't believe we've become captured as PETS!" : "Maybe we can use your beam to get us out." Imani has found some things in the cage to create a portal using their beam. Hang on, what's this? There's an equation on the door! : "I guess we need to solve it to make the door open." Mr. Squeaks and Imani can use "Adding Using a Chart" to help them open the doors. There are many different tools and strategies to help add. Today we will use the hundreds chart, an incredible tool to help solve problems, see patterns, or even just count! The hundreds chart is organized with numbers one through one hundred in columns and rows. Remember when you read a hundreds chart you read it like a book, from left to right. The equation Mr. Squeaks and Imani need to solve first is fifteen plus six. When using the hundreds chart to solve addition problems, start by circling the bigger addend, or number on the chart. What's the bigger addend here? Fifteen. Next, count on the amount of the second addend. We need to count on six more to find the answer (...) count with me! One (...) two (...) three (...) four (...) five (...) SIX! Finally, the number you land on, twenty-one, is the sum, or answer! : "No! We're in the cage again!" : "And it looks like we need to solve another equation before we can teleport again." Mr. Squeaks and Imani can use adding with a chart to get the portal open again! Their next equation is twenty-three plus seven. Remember to start by circling the bigger addend or number on the chart. Next, we can count on the amount of the second addend, so we need to count up seven more. Count with me! One (...) two (...) three (...) four (...) five (...) six (...) SEVEN! Finally, the number that you land on is the sum, or answer. What is the sum here? The sum is thirty! So, twenty-three plus seven is thirty. : [eyes are closed and he's scared/frustrated] "Please tell me we're back home...oh rats!" : "One more time for good luck?" Mr. Squeaks and Imani are going to solve one more equation to try to get home. If their equation is thirty-one plus eight (...) what should they do first? First they should circle their bigger addend on the hundreds chart, thirty-one. Next, they need to count up eight, let's help them count! One (...) two (...) three (...) four (...) five (...) six (...) seven (...) EIGHT! Finally, the number that they land on is the sum, or answer. What is the sum of thirty-one plus eight? (...) Thirty-nine! Before we see if Mr. Squeaks and Imani have finally made it home, let's review. Today we learned about adding using a chart. Remember, when adding using a hundreds chart... Always start by circling the bigger addend, or number on the chart. Next, count on the amount of the second addend or number. Finally, the number that you land on is the sum, or answer. Now, let's see if they finally made it home. : "I slept so well last night, what about you Imani?" : "Wait a second, I'm in my bed? At home?" Mr. Squeaks]: "Was it all just a dream?"

Adding Using Chart exercise

Would you like to apply the knowledge you’ve learned? You can review and practice it with the tasks for the video Adding Using Chart.
  • What are the steps for adding on a 100 chart?

    Hints

    When adding, always count on from the larger addend.

    Addend is a special name for the numbers that you are adding together.

    You will find the sum at the very end of an addition problem.

    Solution

    To solve an addition problem using a 100 chart, follow the steps below:

    1. Find the bigger addend. For example, in the problem 12 + 4 = ?, 12 is the larger addend.
    2. Circle the bigger addend on the 100 chart. For example, in the problem, 12 + 4 = ?, you would circle 12 on the number chart.
    3. Find the smaller addend. For example, in the problem 12 + 4 = ?, 4 is the smaller addend.
    4. Count on the amount of the smaller addend. For example, in the problem, 12 + 4 = ?, begin at the number 12 that you have circled and then count on 4 more.
    5. The number that you land on is the sum, or answer. For example, in the problem, 12 + 4 = ?, you land on the number 16. So, 12 + 4 = 16.
  • Solve an addition sentence using a 100 chart.

    Hints

    The larger addend is 35. So, you should begin at the number 35 on the 100 chart.

    The smaller addend is 8. You need to count on 8 more from 35 to find the sum on the 100 chart.

    Remember, you should read a 100 chart like a book: from left to right!

    Solution

    Here are the steps for solving the equation, 35 + 8 = ?, with a 100 chart:

    • Begin at the larger addend, which is 35. Circle 35 on the 100 chart.
    • Count on the amount of the smaller addend. In this equation, the smaller addend is 8, so you should count on 8 spaces on the 100 chart.
    • The number that you land on, 43, is the sum. So, 35 + 8 = 43.

  • Determine the sum of an addition sentence.

    Hints

    To solve an equation, first find and begin at the larger addend on the 100 chart.

    Count on the amount of the smaller addend to find the sum.

    Remember, you read a 100 chart like a book: from left to right!

    Solution

    To solve an addition problem using a 100 chart, follow the steps below:

    1. Find the bigger addend.
    2. Circle the bigger addend on the 100 chart.
    3. Find the smaller addend.
    4. Count on the amount of the smaller addend.
    5. The number that you land on is the sum, or answer.

    When you solve, the equations and sums should match as follows:

    • 44 + 6 = 50
    • 10 + 7 = 17
    • 42 + 11 = 53
    • 75 + 6 = 81

  • Identify the sum of an addition sentence using a 100 chart.

    Hints

    Use the 100 chart to help you solve.

    Look at the equation carefully to find the larger addend. It is not always the first number that you see.

    Remember, begin at the larger addend on the 100 chart and count up the smaller addend amount. The number you land on is the sum.

    Solution

    To solve an addition problem using a 100 chart, follow the steps below:

    1. Determine the bigger addend. This is not always the first number! For example, in the equation 3 + 70 = ?, 3 comes first, but 70 is greater than 3!
    2. Circle the bigger addend on the 100 chart.
    3. Determine the smaller addend.
    4. Count on the amount of the smaller addend.
    5. The number that you land on is the sum, or answer.

    When you solve, the equations and sums should match as follows:

    • 3 + 70 = 73
    • 28 + 7 = 35
    • 61 + 7 = 68
    • 40 + 12 = 52

  • Show how to add on a 100 chart.

    Hints

    The addends are 50 and 6. The bigger number is already highlighted on the 100 chart.

    The smaller addend is 6. Count up from 50 to find the sum.

    Remember, you read a 100 chart like a book: from left to right!

    Solution

    To solve the equation, 50 + 6 = ?, first find the larger addend, which is 50. 50 is already highlighted. Next, find the smaller addend, which is 6. Count up until you reach the sum, 56. Highlight each number as you count.

  • Calculate the sum of each addition sentence.

    Hints

    Look carefully, the larger addend is not always the first number in the equation.

    Remember, to solve with the 100 chart, begin at the larger addend and count up the amount of the smaller addend.

    Solution

    Sum of 72

    • 12 + 60 = 72
    • 50 + 22 = 72
    Sum of 90
    • 69 + 21 = 90
    • 2 + 88 = 90
    Sum of 45
    • 36 + 9 = 45
    • 20 + 25 = 45