Subtraction of two digit numbers asteroid game

Subtraction of two digit numbers asteroid game. Two digit numbers are also referred to as two place numbers. In some cases, subtracting two number is similar to subtracting single digit numbers. However, if you have to borrow across places, the rule changes. This game contains the two scenarios and speed is a part of it. It is a great exercise for the classroom and at home for parents and teachers.

How to subtract two-digit numbers

Subtracting two-digit numbers is a fundamental arithmetic skill that is important for solving many types of math problems. The basic process for subtracting two-digit numbers involves using place value and regrouping, also known as borrowing or carrying.

To begin, let's consider an example problem: 37 - 15. To solve this problem, we need to subtract the two numbers using the following steps:

  1. Start by subtracting the ones place (the units place) of the two numbers. In this case, 7 - 5 = 2. Write the result, 2, in the ones place of the answer.

  2. Next, subtract the tens place (the tens place) of the two numbers. In this case, 3 - 1 = 2. Write the result, 2, in the tens place of the answer.

  3. The final answer is 22.

Now let's consider a more complex example: 87 - 56. To solve this problem, we need to use regrouping, also known as borrowing or carrying.

  1. Start by subtracting the ones place of the two numbers. In this case, 7 - 6 = 1. Write the result, 1, in the ones place of the answer.

  2. Next, subtract the tens place of the two numbers. In this case, 8 - 5 = 3. However, we have a problem because we don't have enough units (tens place) to subtract 5 from 8. To solve this problem, we need to regroup.

  3. To regroup, we borrow one unit from the hundreds place of the number being subtracted from. This means that we take 1 from the 8 in the tens place, leaving us with 7 units in the tens place. We also need to add 10 to the units place, which gives us 11 units in the ones place.

  4. Now that we have regrouped, we can finish subtracting the tens place of the two numbers. In this case, 7 - 5 = 2. Write the result, 2, in the tens place of the answer.

  5. The final answer is 31.

It's important to practice subtracting two-digit numbers to become proficient at this skill. You can use a pencil and paper to solve these problems, or you can use an online calculator or a math app to check your work. As you become more comfortable with this skill, you'll be able to solve these problems more quickly and accurately.