Number Reverses

Practise using inverse operations to check the addition and subtraction sums for different number calculations
Practise using inverse operations to check the addition and subtraction sums for different number calculations
Identify and describe when to use mental or written techniques to subtract a pair of numbers to solve a problem
Practise using a written columnar method to subtract pairs of four digit numbers with exchange between place value
Choose and calculate pairs of money amounts that sum to totals to one hundred pounds using formal methods of columnar addition with exchange
Explain and record how to use a written method to add pairs of three and four digit money amounts with exchange between place value
Identify and record equivalent fractions to match different numbers of fractions using diagrams and number calculations for multiplication and division
Investigate, match and spell different words that are spelt with a range of prefixes
Explore, test and explain how a range of different materials can change their states between solids, liquids and gases by conducting a series of fair tests
Identify, explain and test how to use filter paper to clean contaminated water when different solid materials have been mixed with a liquid
Investigate, test and record scientific observations about what happens when mixing a range of different materials with water