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Curated Video
Explain how increasing or decreasing the minuend affects the difference
Pupil outcome: I can explain how increasing or decreasing the minuend affects the difference. Key learning points: - If I increase the minuend, the difference increases by the same amount. - If I decrease the minuend, the difference...
Curated Video
Explain and represent constant difference for subtraction
Pupil outcome: I can explain and represent constant difference for subtraction. Key learning points: - If the minuend and subtrahend are both increased by the same amount, the difference stays the same. - If the minuend and subtrahend...
Curated Video
Composition of seven-digit numbers
Pupil outcome: I can explain how a 7-digit number can be composed. Key learning points: - Known facts and unitising can be applied when partitioning 7-digit numbers. - If the missing part is an addend then the other addend is subtracted...
Curated Video
Explain how adjusting the minuend can make mental calculation easier
Pupil outcome: I can explain how adjusting the minuend can make mental calculation easier. Key learning points: - If you increase the minuend the difference increases by the same amount. - If you decrease the minuend the difference...
Curated Video
Use constant difference to balance equations and find unknowns
Pupil outcome: I can use the same difference rule to balance equations. Key learning points: - If I add __ to the minuend and add the same number to the subtrahend, the difference stays the same. - If I subtract __ from the minuend and...
Curated Video
Identify the minuend and subtrahend in column subtraction
Pupil outcome: I can identify the minuend and subtrahend in column subtraction. Key learning points: - The minuend is written first in a column subtraction. - The subtrahend is written beneath the minuend. - The difference is recorded...
Curated Video
Use and explain the most efficient strategies when subtracting quantities of money
Pupil outcome: I can use and explain the most efficient strategies when subtracting quantities of money. Key learning points: - Informal calculation strategies such as rounding and compensating can be applied to calculating with money. -...
Curated Video
Subtracting numbers that bridge through 10
Pupil outcome: I can subtract through 10 using bridging. Key learning points: - When the subtrahend is bigger than the ones value of the minuend, we will have to bridge through 10 - Composition of numbers to 10 allows us to partition...
Curated Video
Solve subtraction calculations mentally by using known facts
Pupil outcome: I can solve subtraction calculations mentally by using known facts Key learning points: - Compensation can be used to simplify subtraction calculations. - Equivalence can be used to simplify subtraction calculations. - A...
Curated Video
Calculate the difference using knowledge of an adjusted subtrahend: difference structure
Pupil outcome: I can calculate the difference using knowledge of an adjusted subtrahend in a difference structure Key learning points: - The more you subtract the smaller the difference. - The less you subtract the greater the...
Curated Video
Explain how adjusting the subtrahend affects the difference: reduction structure
Pupil outcome: I can explain how adjusting the subtrahend affects the difference in a reduction structure. Key learning points: - The more you subtract the less you are left with. - The less you subtract the more you are left with. - A...
Curated Video
Explain how adjusting the subtrahend affects the difference: partitioning
Pupil outcome: I can explain how increasing or decreasing the subtrahend affects the difference in a partitioning structure. Key learning points: - The more you subtract the less you are left with. - The less you subtract the more you...
Curated Video
Review identifying the minuend and subtrahend in column subtraction
Pupil outcome: I can identify the minuend and subtrahend in column subtraction. Key learning points: - The minuend and subtrahend are written in columns with the same value digits in the same column. - The subtrahend is written beneath...
Curated Video
Identify knowns and unknowns in subtraction equations
Pupil outcome: I can identify knowns and unknowns in subtraction equations. Key learning points: - Equations can be represented using part-part-whole or bar models. - If the minuend is missing, you add the subtrahend and difference. - To...
Curated Video
Subtract a pair of 2-digit numbers by finding the difference
Pupil outcome: I can subtract a pair of 2-digit numbers by finding the difference. Key learning points: - When the minuend and subtrahend are close in value, finding the difference can be an efficient strategy for subtraction - Finding...
Curated Video
Subtract 2 or 3-digit numbers using partitioning and bridging a multiple of 10
Pupil outcome: I can subtract 2 or 3-digit numbers using partitioning and bridging a multiple of 10 Key learning points: - By looking at the minuend and subtrahend we know if we will have to bridge 10 or 100 - If the ones digit of the...
Curated Video
Subtract fractions from a whole by converting the whole to a fraction
Pupil outcome: I can subtract fractions from a whole by converting the whole to a fraction. Key learning points: - A fraction with the same numerator and denominator is equal to one whole. - To subtract a fraction from a whole, convert...
Curated Video
Use column subtraction to subtract from a 2- or 3-digit number
Pupil outcome: I can use column subtraction to subtract from a 2- or 3-digit number. Key learning points: - Start by subtracting the number with the smallest place value first. - The minuend always appears first in a column subtraction....
Curated Video
Use the additive relationship to rearrange subtraction equations
Pupil outcome: I can rearrange subtraction equations. Key learning points: - Equations can be represented using part-part-whole or bar models. - The subtrahend and difference are parts and the minuend is the whole. - Subtraction...
Curated Video
Choose the most efficient strategy to subtract from a 3-digit number
Pupil outcome: I can choose the most efficient strategy to subtract from a 3-digit number. Key learning points: - By looking carefully at the minuend and subtrahend, we can choose the most efficient subtraction strategy. - When numbers...
Curated Video
Add and subtract fractions with the same denominator in a range of contexts
Pupil outcome: I can add and subtract fractions with the same denominator in a range of contexts. Key learning points: - If fractions have the same denominator they can be added or subtracted. - Number lines can represent addition and...
Curated Video
Choose efficient approaches when subtracting mixed numbers
Pupil outcome: I can choose efficient approaches when subtracting mixed numbers. Key learning points: - Partitioning is a strategy that can be used to subtract mixed numbers. - When partitioning, the whole number part and the fractional...
Curated Video
Calculate change when purchasing several items
Pupil outcome: I can calculate change when purchasing more than one item. Key learning points: - Calculating change can be thought of as finding the difference between the cost and the amount of money given. - If you are buying several...
Curated Video
Explain how constant difference can make written calculations more efficient
Pupil outcome: I can explain how using the same difference rule can make written calculations easier. Key learning points: - It is easier to use a written strategy for subtraction when no exchanging is required. - If the minuend and...