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Addition of Three Integers

2.NBT
Answer Keys Here

Aligned To Common Core Standard:

Grade 2 Operations - 2.NBT

Tips for Adding Three Integers - Adding numbers can be a confusing task when there are negative integers in the mix as well. Thus, it is necessary that the kids understand which integer should be solved first, depending on the type of integer. To solve these integers swiftly, the following set of tips needs to be kept in mind. Firstly, you need to learn which types of integers are present in a single question. For instance, 5 + (-6) + 3. In this equation, you can see that there are two positive integers and one negative integer. Thus, in such a scenario, you can add positive ones together and subtract the negative ones later. In another scenario, if there are two negative integers and one positive integer. For instance, -4 + (-6) + 3, the negative integers will be subtracted first. Then, you can add the positive integer 3 to the answer. In this series of lessons and worksheets students will learn how to find the sum of three integers.

Printable Worksheets And Lessons




Homework Sheets

All the sums are setup vertically for you to work with.

  • Homework 1 - Start by adding the ones column.
  • Homework 2 - Step two is to carry the one to the tens place and add the tens place.
  • Homework 3 - The last step is to carry the one and add the hundreds place.



Practice Worksheets

I sprinkled a few fun facts in here for you.

  • Practice 1 - Make sure to start with the ones place and add right to left.
  • Practice 2 - Anytime you get a number that is greater than 9, carry that extra digit into the next place value.
  • Practice 3 - If you are adding numbers with different place values pay attention to the numbers and place zeroes before you start in empty place.



Math Skill Quizzes

We stick to two integers and three integer sets. If you are looking for single integer sets, try the practice sheets.

  • Quiz 1 - It is best to keep a running tally as you add 3 or more numbers.
  • Quiz 2 - I find it best to cross out numbers that have already undergone operations.
  • Quiz 3 - When adding 3 or more single digit numbers. It is easiest to add even numbers first. If they are all even, add the smallest numbers first. This organizes it better for you.