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Alike: Definition and Example | EDU.COMEDU.COMResourcesBlogGuidePodcastPlanBackHomesvg]:size-3.5">Math Glossarysvg]:size-3.5">AlikeAlike: Definition and ExampleTable of ContentsUnderstanding "Alike" in Mathematics Definition of Alike

In mathematics, the term "alike" refers to objects, numbers, or shapes that share similar characteristics or properties. When we say things are "alike" in math, we mean they have common features that help us group or classify them based on these shared attributes. This concept helps students learn to notice patterns, make comparisons, and understand relationships between different mathematical objects.

Finding what is "alike" in mathematics is an important skill that helps with sorting, classifying, and organizing information. Students learn to identify common properties such as size, shape, color, number patterns, or other attributes. By recognizing what makes things alike, students build foundational skills for more complex math concepts like equivalence, similarity, congruence, and pattern recognition.

Examples of Alike Example 1: Finding Numbers Alike in Value Problem:

Which numbers are alike in value?

A. 15 and 1 + 4 B. 12 and 10 + 2 C. 9 and 4 + 4 Step-by-step solution:

Step 1, Let's check each pair to see if they have the same value.

Step 2, For pair A: 15 and 1 + 4

Calculate 1 + 4 = 5 15 is not the same as 5, so they are not alike.

Step 3, For pair B: 12 and 10 + 2

Calculate 10 + 2 = 12 12 is the same as 12, so they are alike.

Step 4, For pair C: 9 and 4 + 4

Calculate 4 + 4 = 8 9 is not the same as 8, so they are not alike.

Step 5, The answer is B because 12 and 10 + 2 have the same value.

Example 2: Shapes That Are Alike Problem:

Which shapes below are alike?

Circle Triangle Square Rectangle Another square Step-by-step solution:

Step 1, Think about each shape and its properties.

Step 2, A circle is round with no straight sides or corners.

Step 3, A triangle has 3 sides and 3 corners.

Step 4, A square has 4 equal sides and 4 right angles.

Step 5, A rectangle has 4 sides and 4 right angles, but opposite sides are equal.

Step 6, Another square also has 4 equal sides and 4 right angles.

Step 7, The shapes that are alike are the square and the other square (shapes 3 and 5) because they both have the same properties: 4 equal sides and 4 right angles.

Example 3: Numbers Alike in Properties Problem:

Which numbers are alike? Choose all the correct answers.

A. 6 and 8 B. 15 and 25 C. 7 and 11 D. 10 and 30 Step-by-step solution:

Step 1, We need to find pairs of numbers that share common properties.

Step 2, For pair A: 6 and 8

6 is an even number 8 is an even number Both are composite numbers They are alike in these ways.

Step 3, For pair B: 15 and 25

15 = 5 × 3 25 = 5 × 5 Both are multiples of 5 Both end with 5 They are alike in these ways.

Step 4, For pair C: 7 and 11

7 is an odd number 11 is an odd number Both are prime numbers They are alike in these ways.

Step 5, For pair D: 10 and 30

10 = 10 × 1 30 = 10 × 3 Both are multiples of 10 Both are even numbers They are alike in these ways.

Step 6, The answers are A, B, C, and D because each pair shares at least one common property.

Comments(2)EEditorHankNovember 6, 2025I've used this 'alike' def to teach my kid. It's super helpful for them to grasp shape similarities. Great resource!

NNatureLover92September 17, 2025I used the 'alike' definition to help my kids group shapes by size and color—it made learning so much easier for them! Great resource for visual learners.

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