Following phrases represent various strategies for which of the following single digit whole number operations?
Count all, count on or make a ten

Correct option is A

Strategies like "count all," "count on," and "make a ten" are used for small number addition operations.

• Count all: This involves counting all the numbers one by one. For example, for $3+2$, you count 1, 2, 3, and then 4, 5.
• Count on: This strategy is helpful when starting the count from the larger number and adding the smaller one. For $3+2$, start from 3 and count 4, 5.
• Make a ten: This involves rearranging numbers to form a 10 first. For example, $8+5$ can be broken into $8+2+3$. First, make 10 ($8+2$), then $10+3=13$.

Hence, the correct answer is (a) Addition.

Explanation

• "Count all" and "count on" are particularly used in the early stages of learning addition.
• "Make a ten" is a more advanced strategy that aids in mental arithmetic and efficiency.
• These strategies are especially helpful for performing addition with smaller numbers.

Information Booster

1. "Count all" and "count on" strategies simplify basic arithmetic operations.
2. "Make a ten" improves the speed and accuracy of mental calculations.
3. Addition forms the foundation of mathematical skills in primary education.
4. All these strategies are designed to enhance mathematical understanding and fluency in children.
5. The "make a ten" strategy is also useful in higher-level mathematical problems.
6. Arithmetic games and activities can help in implementing these strategies effectively.

Additional Information

• (a) Addition: The primary focus of early mental calculation strategies.
• (b) Subtraction: Uses strategies like "count back" and "find the difference."
• (c) Multiplication: Involves strategies like "repeated addition" and "skip counting."
• (d) Division: Uses methods like "equal sharing" and "repeated subtraction."