# Addition mixed to subtraction math quiz

Subtraction and addition are fundamental math operations that are essential for students to understand and master. These operations help students understand the concept of numbers and how they can be used to solve problems.

One important aspect of subtraction and addition is the ability to use these operations to make a number up to 20. This involves using basic arithmetic skills to add or subtract single-digit numbers to reach a target number between 1 and 20.

To make a number up to 20 using subtraction, students first need to understand the concept of difference. The difference between two numbers is the result obtained when one number is subtracted from the other. For example, the difference between 8 and 5 is 3, because 8 – 5 = 3.

To make a number up to 20 using subtraction, students can start with a larger number and subtract single-digit numbers until they reach the target number. For example, if the target number is 15 and the starting number is 18, the student could subtract 3 to get 15. Alternatively, if the starting number is 13 and the target number is 15, the student could add 2 to get 15.

In addition to subtraction, students can also use addition to make a number up to 20. To do this, they need to understand the concept of sum, which is the result obtained when two or more numbers are added together. For example, the sum of 5 and 3 is 8, because 5 + 3 = 8.

To make a number up to 20 using addition, students can start with a smaller number and add single-digit numbers until they reach the target number. For example, if the target number is 17 and the starting number is 10, the student could add 7 to get 17. Alternatively, if the starting number is 15 and the target number is 17, the student could add 2 to get 17.

Making a number up to 20 using subtraction and addition is an important skill for students to master as it helps them understand the basic concepts of arithmetic and how to use these concepts to solve problems. With practice, students will become more confident and skilled in using these operations to make a number up to 20 and will be well-prepared to tackle more advanced math concepts in the future.

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