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Math for Grade 1
1 Numbers and Counting
1-1 Counting from 1 to 10
1-2 Recognizing and writing numbers 1 to 10
1-3 Counting objects in groups
1-4 Comparing numbers using symbols (<, >, =)
2 Addition
2-1 Introduction to addition
2-2 Adding two single-digit numbers
2-3 Solving addition problems with pictures and objects
2-4 Addition word problems
3 Subtraction
3-1 Introduction to subtraction
3-2 Subtracting two single-digit numbers
3-3 Solving subtraction problems with pictures and objects
3-4 Subtraction word problems
4 Shapes and Patterns
4-1 Recognizing basic 2D shapes (circle, square, triangle, rectangle)
4-2 Identifying shapes in the environment
4-3 Creating simple patterns with shapes
4-4 Sorting objects by shape
5 Measurement
5-1 Comparing lengths and heights using non-standard units
5-2 Introduction to weight and volume
5-3 Comparing objects by weight and volume
5-4 Understanding the concept of time (morning, afternoon, evening)
6 Graphs and Data
6-1 Introduction to simple graphs (picture graphs)
6-2 Interpreting data from picture graphs
6-3 Creating simple picture graphs
6-4 Understanding the concept of more, less, and equal
7 Problem Solving
7-1 Solving problems using addition and subtraction
7-2 Identifying the correct operation (addition or subtraction)
7-3 Using objects and drawings to solve problems
7-4 Explaining the solution process
8 Number Sense
8-1 Understanding the concept of even and odd numbers
8-2 Recognizing and writing numbers 11 to 20
8-3 Counting by 2s, 5s, and 10s
8-4 Understanding place value (ones and tens)
9 Geometry
9-1 Recognizing basic 3D shapes (cube, sphere, cylinder, cone)
9-2 Identifying faces, edges, and vertices of 3D shapes
9-3 Sorting objects by 3D shape
9-4 Exploring symmetry in shapes
10 Money
10-1 Introduction to coins (penny, nickel, dime)
10-2 Identifying and counting coins
10-3 Simple money exchange problems
10-4 Understanding the value of money
Subtraction with the Number 3

Subtraction with the Number 3

Understanding Subtraction

Subtraction is a basic math operation where we take away a number from another to find the difference. When we subtract, we use the "-" symbol to show that we are taking away.

Subtraction with the Number 3

When we subtract the number 3 from another number, we are essentially taking away three units from that number. For example, if you have 5 apples and you take away 3 apples, you will have 2 apples left.

Examples of Subtracting 3

Let's look at some examples:

Analogies to Understand Subtracting 3

Think of subtracting 3 like taking three items out of a box. If you have five toys in a box and you take out three toys, you now have two toys left in the box. Similarly, if you have six candies and you eat three, you will have three candies left.

Practical Application

Understanding how to subtract 3 is important for solving simple math problems. For instance, if you have 8 cookies and you eat 3, you can quickly subtract them to find out that you now have 5 cookies left.

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