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Addition of Integers Using Formal Methods WORKSHEET

Suitable for Grades: 2nd Grade, 4th Grade

CCSS: 2.NBT.B.7, 4.NBT.B.4

CCSS Description: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.

Fluently add and subtract multi-digit whole numbers using the standard algorithm.

Addition of Integers Using Formal Methods WORKSHEET DESCRIPTION

Pupils will take a deep dive into using the column method for addition while working through this worksheet. Section A kicks off with 4 addition questions where the numbers are already drawn out on a square grid. Two questions need no regrouping, and 2 questions do; also, in 2 questions, the numbers to be added contain a different amount of digits.

Next, learners will complete four further addition questions; however, this time, they will have to put the numbers into the column addition layout themselves before completing the addition. A square grid is provided. Included is an addition of two numbers from words.

In section C, pupils will spot, explain, and correct the mistakes in two complete additions. Lastly, section D challenges learners' understanding of using the column method as they must fill in the blanks to complete three column additions.

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