First Grade Addition and Subtraction Up to 20 Worksheets

If you are a first-grade teacher or a parent of a child in first grade, you may be searching for engaging and educational resources to help reinforce addition and subtraction skills. Look no further! We have a collection of comprehensive worksheets designed specifically for young learners to practice and master addition and subtraction problems up to 20.

  Math Addition and Subtraction Worksheets

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  1st Grade Addition and Subtraction Worksheets

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  Basic Addition and Subtraction Worksheets

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  Subtraction Worksheets

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  2nd Grade Math Subtraction Worksheets

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  Addition and Subtraction Inverse Relationships Worksheets

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  Subtraction Worksheets Grade 1

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  Addition and Subtraction to 20 Worksheets

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  Subtraction to 20 Worksheets

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  Subtraction Worksheets Up to 20

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  Halloween Math Addition First Grade

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  First Grade Math Worksheets Addition Subtraction

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  Addition Facts Color by Number

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What is an addition equation?

An addition equation is a mathematical statement that shows the sum of two or more numbers. It typically takes the form of a + b = c, where 'a' and 'b' are the numbers being added together, and 'c' is their sum. The goal in solving an addition equation is to find the value of the unknown variable by performing the addition operation.

How do you solve an addition equation?

To solve an addition equation, you need to isolate the variable by performing the inverse operation. Start by identifying the constant terms on both sides of the equation. Then, simplify the equation by combining like terms. Next, perform the opposite operation of addition, which is subtraction, to move the constant terms to one side of the equation. Continue simplifying until you isolate the variable on one side of the equation, resulting in the solution for the variable.

What is a sum in an addition equation?

A sum in an addition equation refers to the result obtained when two or more numbers are added together. It represents the total value or quantity obtained by combining the individual values being added.

What is a subtraction equation?

A subtraction equation is a mathematical equation that involves finding the difference between two numbers by subtracting one number from another. It typically consists of a minuend (the number being subtracted from), a subtrahend (the number being subtracted), and a difference (the result of the subtraction operation).

How do you solve a subtraction equation?

To solve a subtraction equation, you need to isolate the variable by performing the inverse operation of subtraction, which is addition, to both sides of the equation. By adding or combining like terms on both sides, you can simplify the equation until you find the value of the variable that satisfies the equation.

What is the difference in a subtraction equation?

The difference in a subtraction equation is the result or answer obtained when one quantity is subtracted from another. It represents the gap or distance between the two quantities being compared.

How do you use a number line to do addition?

To use a number line to do addition, start by placing one number on the number line. Then, move to the right on the number line by the amount of the second number you are adding. The point where you land after moving to the right represents the sum of the two numbers. This method helps visualize the addition process and understand how numbers relate to each other in terms of magnitude.

How do you use a number line to do subtraction?

To use a number line for subtraction, you start at the first number (the minuend) on the number line and then move to the left by the amount of the second number (subtrahend). The point where you land on the number line is your answer, which is the result of the subtraction. The distance between the initial point and the new point is the difference between the two numbers being subtracted.

What strategies can you use to add two numbers up to 20?

One strategy to add two numbers up to 20 is to find the difference between the target number (20) and one of the given numbers, then add this difference to the other number. For example, if you have numbers 9 and 14, subtract 9 from 20 to get 11, then add 11 to 14 to get 25 as the sum. Another strategy is to break down one of the numbers to make it easier to add up to 20, for example, if you have 7 and 13, you can break down 13 into 10 and 3, then add 10 to 7 to get 17, and finally add 3 to get 20 as the sum.

What strategies can you use to subtract two numbers up to 20?

When subtracting two numbers up to 20, you can use strategies like counting back, using a number line, or using mental math techniques like regrouping. Another method is to break down the subtraction into smaller steps, such as subtracting tens and then the remaining ones. Additionally, practicing basic subtraction facts and understanding the concept of subtraction can help to improve efficiency and accuracy in subtracting numbers up to 20.