Oxford Mathematics Primary Years Programme

Partitioning 23 into two parts, if one part is 7, the other part is ______.

Which of the following equations represents a valid partition of the number 16 into two parts?

If you have 20 counters and you partition them into two groups, which combination is NOT possible based on the provided content?

Which of the following is the most accurate description of 'partitioning' in a mathematical or conceptual context?

When counting on from a larger number, you begin with the ______ number and increment by the ______ number.

What is the result of counting on 9 from 23?

When presented with the addition problem 5 + 16, it is more efficient to start counting from 5 and add 16.

Calculate the result of adding 12 to 65 using mental math strategies.

Which of the following is the most accurate description of the strategy of 'counting on'?

Applying the 'count on' strategy to determine how much is 8 more than 86, you would start at ______ and progress by ______ steps.

Which of the following mathematical strategies is most closely aligned with the concept of 'partitioning' as described in the content?

When adding 9 and 3 using the count-on strategy, which number should you start with and why?

When using the count-on strategy, it is always more efficient to start counting from the smaller number, regardless of the difference between the two numbers.

Explain how the 'count on' strategy simplifies addition, especially when dealing with numbers that have a significant difference in value.

To efficiently add 16 and 3 using the count-on method, begin with ______ and count up three times.

In a problem where you need to add 12 and 11, which initial step demonstrates the most efficient use of the 'count on' strategy?

What is the primary advantage of using a number line in conjunction with the 'count on' strategy?

Explain a scenario where the 'count on' strategy might not be the most efficient method for addition. What alternative strategy could be used?

When presented with an addition problem, the first step in effectively applying the 'count on' strategy involves identifying the ______ of the two numbers.

Which of the following methods is LEAST efficient for finding the difference between two numbers, especially when dealing with larger values?

Finding the difference between two numbers is always the same as determining how many units need to be added to the smaller number to reach the larger number.

Explain a real-world scenario where knowing the difference between two quantities is crucial for decision-making.

When finding the difference between 25 and 18 by counting back, you start at 25 and count back ______ units to reach 18.

Match the number pairs with their corresponding differences:

A student is asked to find the difference between two numbers. They consistently count up from the larger number to the smaller one. What fundamental concept are they misunderstanding?

Which calculation strategy would be most appropriate and efficient to find the difference between 102 and 98?

Given three numbers A, B, and C, where A > B > C, which expression represents the largest difference?

Based on the data provided for skip counting, which of the following sequences demonstrates consistent incremental jumps?

In skip counting by 5s, the sequence 35, 40, 50, 65, 75 demonstrates a consistent arithmetic progression.

If a student is skip counting by 10s and starts at 10, identifying 30 and 70 as subsequent numbers in the sequence, what is the likely next number if the student understands the pattern?

When skip counting by ______, the difference between consecutive numbers is constant and equal to the skip count value.

Match the skip counting sequence with their respective skip values:

Consider the skip counting chart provided. Which skip counting sequence contains an error?

Following the 'Skip count by 2s' directions, '73, 66, 65, 56' is a correct path for the koala to get to the tree.

Given the last segment of skip counting by 5s to find the secret number includes 48 and 94, what would be the whole number average between the two values?

Which of the following pairs does NOT represent a valid partition of 28 as demonstrated in the provided examples?

Partitioning numbers is MOST strategically employed to enhance which of the following mathematical skills?

True or False: For any given whole number, there exists only a single, unique way to partition it into exactly two whole number parts.

True or False: When a number is partitioned, each resulting part must invariably be of a lesser value than the original number.

Demonstrate a partition of the number 57 into three parts, ensuring that one of these parts is precisely 25.

Articulate in your own words the fundamental advantage of employing number partitioning as a strategy when dealing with calculations involving larger numerical values.

Complete the following four-part partition of the number 57: ___ and 5 and 20 and 7.

Match each number with the set of partitions that accurately represents it.