Mental Subtraction Strategies Assessment
This worksheet contains problems associated with six commonly used mental subtraction strategies.
- Make Ten
- Use Ten
- Take Ten
- Halving
- Jump Strategy
- Inverse Strategy
It is a great assessment tool for use after completing the Year 2 Mental Subtraction Strategies unit. The assessment provides opportunities for students to demonstrate their understanding of the six mental subtraction strategies covered in the unit.
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Learning goals
- We are learning to solve problems involving modelling addition, subtraction, equal sharing and grouping, using different strategies.
- We are learning to recall addition facts to 20 and apply to related subtraction facts using a range of strategies.
- We are learning to use a range of mental and written strategies to solve simple addition and subtraction problems.
Curriculum alignment
AC9M2N06
9
Use mathematical modelling to solve practical problems involving additive and multiplicative situations, including money transactions; represent situations and choose calculation strategies; interpret and communicate solutions in terms of the situation
AC9M2A02
9
Recall and demonstrate proficiency with addition facts to 20; extend and apply facts to develop related subtraction facts
ACMNA030
8.4
Solve simple addition and subtraction problems using a range of efficient mental and written strategies
MA1-1WM
old
Describes mathematical situations and methods using everyday and some mathematical language, actions, materials, diagrams and symbols
MA1-2WM
old
Uses objects, diagrams and technology to explore mathematical problems
MA1-3WM
old
Supports conclusions by explaining or demonstrating how answers were obtained
MA1-5NA
old
Uses a range of strategies and informal recording methods for addition and subtraction involving one- and two-digit numbers
MA1-6NA
old
Uses a range of mental strategies and concrete materials for multiplication and division
MA1-4NA
old
Applies place value, informally, to count, order, read and represent two- and three-digit numbers
MA1-CSQ-01
new
Uses number bonds and the relationship between addition and subtraction to solve problems involving partitioning
MA1-FG-01
new
Uses the structure of equal groups to solve multiplication problems, and shares or groups to solve division problems
VCMNA107
Solve simple addition and subtraction problems using a range of efficient mental and written strategies
VCMNA108
Recognise and represent multiplication as repeated addition, groups and arrays
VCMNA114
Apply repetition in arithmetic operations, including multiplication as repeated addition and division as repeated subtraction
VCMNA111
Count and order small collections of Australian coins and notes according to their value
VCMNA103
Investigate number sequences, initially those increasing and decreasing by twos, threes, fives and ten from any starting point, then moving to other sequences
Australian Curriculum covers QLD / SA / WA / NT / TAS / ACT.
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