Solved Exercises on Counting On One in Grade 1

Master counting on one: addition and subtraction strategies with visual methods through these 3 detailed exercises.

Solution: Exercises 1 to 3
1 Counting on one from 2
Exercise 1
Start at 2 and count on 1 more. What number do you land on?
Definition:

Counting on one: Starting from a number and counting forward 1 step to find the total

Counting on one method:
  1. Start at the initial number
  2. Count forward 1 step
  3. The final number is the answer
2
3
Start at 2
Step 1: 3
Step 1: Start at 2

Begin counting from the number 2

Step 2: Count on 1 step

From 2, count: 3

Step 3: Final result

After counting on 1 from 2, we land on 3

2 + 1 = 3
Final answer:

We land on the number 3.

Applied rules:

• Start at the number: Begin counting from the given number

• Count forward: Each step moves to the next number

• Count the steps: Count exactly the number of steps specified

2 Counting on one from 5
Exercise 2
Start at 5 and count on 1 more. What number do you reach?
Definition:

Counting on one: Starting from a number and counting forward 1 step to find the total

5
6
6
Step 1: Start at 5

Begin counting from the number 5

Step 2: Count on 1 step

From 5, count: 6

Step 3: Final result

After counting on 1 from 5, we reach 6

5 + 1 = 6
Final answer:

We reach the number 6.

Applied rules:

• Start at the number: Begin counting from the given number

• Count forward: Each step moves to the next number

• Count the steps: Count exactly the number of steps specified

3 Counting on one from 8
Exercise 3
Start at 8 and count on 1 more. What number do you arrive at?
Definition:

Counting on one: Starting from a number and counting forward 1 step to find the total

8
9
8
9
9
Step 1: Start at 8

Begin counting from the number 8

Step 2: Count on 1 step

From 8, count: 9

Step 3: Final result

After counting on 1 from 8, we arrive at 9

8 + 1 = 9
Final answer:

We arrive at the number 9.

Applied rules:

• Start at the number: Begin counting from the given number

• Count forward: Each step moves to the next number

• Count the steps: Count exactly the number of steps specified

Detailed Summary: Counting On One

Definitions of Key Concepts

Counting On One: A mathematical strategy where you start from a given number and count forward exactly 1 step to find the total. This is essentially adding 1 to the starting number.

Starting Number: The number you begin counting from

Counting Forward: Moving to the next number in sequence

Step: Each count represents one unit of addition

Total: The final number after counting the specified steps

Core Rules and Principles

Rule 1: Always start counting from the given number.

Rule 2: Count forward (not backward) when adding.

Rule 3: Count exactly the number of steps specified.

Rule 4: Each step moves to the next consecutive number.

Step-by-Step Methods

  1. Identify the starting number: Know which number to begin counting from
  2. Count forward: Move to the next number in sequence
  3. Repeat for the required steps: For counting on 1, count forward once
  4. Record the final number: The number you land on is the answer
  5. Verify: Check that you counted the correct number of steps

Examples - Simple to Advanced

Simple Example: Counting on 1 from 0

Start at 0 → Step 1: 1

Result: 0 + 1 = 1

Medium Example: Counting on 1 from 4

Start at 4 → Step 1: 5

Result: 4 + 1 = 5

Advanced Example: Counting on 1 from 9

Start at 9 → Step 1: 10

Result: 9 + 1 = 10

Tips, Tricks, and Common Pitfalls

Tip 1: Use your fingers to count the steps when starting out.
Tip 2: Use a number line to visualize the counting process.
Tip 3: Say each number aloud as you count to stay focused.
Pitfall 1: Don't count the starting number as one of the steps.
Pitfall 2: Make sure to count exactly 1 step, not more or fewer.

Key Notes for Memorization

  • Counting on 1 is the same as adding 1 to the starting number
  • Always start counting from the given number
  • Count forward, not backward
  • Each step moves to the next consecutive number
  • Count exactly 1 step for "counting on 1"
  • The starting number is not counted as a step
  • Practice with a number line to visualize the process
Visual Counting Strategies for Counting On One
Counting On One
Visual Counting Techniques
Counting On One from 3
3
4
4

Start at 3 → Count 4 (step 1)

Result: 3 + 1 = 4

Counting On One from 7
7
8
8

Start at 7 → Count 8 (step 1)

Result: 7 + 1 = 8

Counting On One from 10
10
11
11

Start at 10 → Count 11 (step 1)

Result: 10 + 1 = 11

Verification Method
Checking Your Count
Double Check

If you counted 6 after starting at 5 and counting on 1, verify:

5 → 6 (step 1) ✓

This is correct: 5 + 1 = 6

Always count again if you're unsure!

Counting On One Laws, Methods, Rules, and Definitions
Counting On One
Fundamental Counting Principles
Key definitions:

Counting On: A strategy where you start from a number and count forward to add

Step: Each count represents one unit of addition

Starting Number: The initial number to begin counting from

Complete counting on one methodology:
  1. Identify the starting number: Know which number to begin from
  2. Count forward: Move to the next number in sequence
  3. Take the step: Count 1 step forward
  4. Record the result: The number you land on is the answer
Tip 1: Practice with small numbers first before moving to larger ones.
Tip 2: Use visual aids like number lines or counters to assist in learning.
Tip 3: Count slowly and deliberately to avoid mistakes.
Tip 4: Always verify your answer by counting again.
Counting laws: Each step moves to the next consecutive number, the starting number is not counted as a step, exactly 1 step must be taken.
Best practices: Use visual aids, count slowly, verify results, practice regularly.
Counting on one principles to remember:

• Start counting from the given number

• Count forward only

• Take exactly 1 step

• Each step moves to the next number

• The starting number is not counted as a step

• The final number is the answer

• Counting on 1 is equivalent to adding 1

Questions & Answers

Question: I get confused about whether to count the starting number or not. When I start at 4 and count on 1, should I say "4, 5" or just "5"?

Answer: Great question! When counting on, you start FROM the number but don't count it as a step. So when counting on 1 from 4:

  • Start at 4 (don't count this as a step)
  • First step: 5 (this is step 1)

So you say "5" and the answer is 5.

Think of it like this: "I have 4, and I want to add 1 more" - so you start after 4 and count 1 more number.

The starting number is your base, then you add to it!

Question: Is counting on 1 the same as adding 1?

Answer: Yes, exactly! Counting on 1 is the same as adding 1.

When you count on 1 from a number, you're essentially adding 1 to that number:

  • Counting on 1 from 3 = 3 + 1 = 4
  • Counting on 1 from 7 = 7 + 1 = 8
  • Counting on 1 from 9 = 9 + 1 = 10

Counting on is just a strategy to help you add. It's especially helpful when you're learning addition because it uses the counting skills you already know!

As you get better at math, you'll recognize that counting on is just another way to add.

Question: How can I help my child practice counting on 1 effectively?

Answer: Here are effective practice strategies:

  • Use a number line: Have your child point to the starting number, then hop forward 1 space
  • Count with fingers: Put up the starting number of fingers, then add 1 more
  • Real objects: Start with a group of objects, then add 1 more to see the total
  • Games: Create simple games where they start at random numbers and count on 1
  • Verbal practice: Say starting numbers aloud and have them respond with the answer

For example: Start with 5 blocks, add 1 more block, count all 6 blocks. Then connect this to "counting on": "Starting at 5, counting on 1 gets us to 6."

Practice for just 5-10 minutes daily to build fluency without overwhelming them.