Additive thinking resources

Students answer questions involving negative numbers about rising and falling water levels.

Students add up amounts of money including dollars and cents.

Student solve addition problems where the missing value is located in different positions. This may mean that students transform the problem into a subtraction one. Students reflect on the easiest and hardest problems, and explain their choice.

Students use addition and multiplication to work out the cheapest of several price options.

This task requires students to show how to calculate multiplication problems with multi-digit numbers.

Students find the sum of a number of given decimal weights of objects or the post.

Students measure the length of sides and calculate the perimeter for a number of polygons.

Students use all four operations to perform calculations using decimal values.

Students calculate addition and subtraction problems, written in decimal form, for city populations.

Students perform addition and multiplication based on information given in decimal form in a table.

Students work out the difference in distances of throws and jumps of various athletic events.

Students use addition and subtraction to calculate in temperatures over periods of time.

Students calculate the numbers of pieces of fruit and vegetables divided evenly into bags, and any remainder.

Students use given distances to calculate other distances.

Students perform calculations on indoor cricket scores, which include negative numbers.

Students perform addition and subtraction problems involving negative numbers.

Students calculate the changes to an account balance after two withdrawals and a deposit.

Students use prices of vegetables to perform all four arithmetic operations on decimal numbers.

Students discuss making an initial estimate in addition problems using the front-end method followed by compensation to get a more accurate estimate. They then use this method on two addition problems.

Students decide which children are estimating and which are not, and explain their reasoning.

Students carry out calculations involving addition, and multiplication of whole numbers by decimal numbers.

Students find the biggest and smallest numbers from a list of positive and negative numbers. They add, subtract and multiply using these numbers.

Students to show how they estimate in some addition problems.

Students identify fractions that are greater than a half, explain their reasoning, and identify how far from half some fractions are.

This practical task requires students to collect data about gender and left- or right- handedness from a group or class, present their data in a 2 × 2 array, and make a statement based on their findings.