# Sum of the Square

Subjects

Mathematics
--Arithmetic

3-5

Brief Description

Practice adding a column of numbers.

Objectives

Students will

• follow directions as they add numbers above, below, and to the right and left of the square.
• calculate sums with accuracy.

Keywords

Materials Needed

Printable work sheets provided; scroll down for all five pages. Sum of the Square #1 work sheet
Sum of the Square #2 work sheet
Sum of the Square #3 work sheet
Sum of the Square #4 work sheet
Sum of the Square #5 work sheet

Lesson Plan

Provide students with a copy of Sum of the Square #1 work sheet, or project the worksheet on the wall. Call on students to follow one instruction at a time as they

• add to find the sum of the numbers above the square.
• add to find the sum of the numbers below the square.
• add to find the sum of the numbers to the right of the square.
• add to find the sum of the numbers to the left of the square.
• add to find the sum of the numbers inside the square.

Finally, students will add the column of numbers to find the total sum of the square." Check their work using the answer key in the Assessment section below.

We have provided four additional Sum of the Square work sheets. You might arrange students into small groups to do a couple more of the work sheets; students can check one anothers work. You might use the remainder of the work sheets for independent seat work. Remind students to check their work.

Assessment

Assess students based on the accuracy of their work. Here are the answers for the five work sheets:
Sum of the Square #1 work sheet

• Sum of the numbers above the square: 11
• Sum of the numbers below the square: 13
• Sum of the numbers to the right of the square: 10
• Sum of the numbers to the left of the square: 18
• Sum of the numbers inside the square: 22
• Total sum of the square: 74
Sum of the Square #2 work sheet
• Sum of the numbers above the square: 11
• Sum of the numbers below the square: 13
• Sum of the numbers to the right of the square: 17
• Sum of the numbers to the left of the square: 17
• Sum of the numbers inside the square: 20
• Total sum of the square: 78
Sum of the Square #3 work sheet
• Sum of the numbers above the square: 14
• Sum of the numbers below the square: 9
• Sum of the numbers to the right of the square: 5
• Sum of the numbers to the left of the square: 20
• Sum of the numbers inside the square: 27
• Total sum of the square: 75
Sum of the Square #4 work sheet
• Sum of the numbers above the square: 13
• Sum of the numbers below the square: 24
• Sum of the numbers to the right of the square: 12
• Sum of the numbers to the left of the square: 12
• Sum of the numbers inside the square: 21
• Total sum of the square: 82
Sum of the Square #1 work sheet
• Sum of the numbers above the square: 11
• Sum of the numbers below the square: 14
• Sum of the numbers to the right of the square: 13
• Sum of the numbers to the left of the square: 11
• Sum of the numbers inside the square: 22
• Total sum of the square: 71

Lesson Plan Source

EducationWorld.com

Submitted By

Gary Hopkins

National Standards

MATHEMATICS: Number and Operations
NM-NUM.3-5.1 Understand Numbers, Ways of Representing Numbers, Relationships Among Numbers, and Number Systems
NM-NUM.3-5.2 Understand Meanings of Operations and How They Relate to One Another
NM-NUM.3-5.3 Compute Fluently and Make Reasonable Estimates

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