Additive thinking resources

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

Students calculate the length of a builder's string line.

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

Students answer four questions about flight times on a flight schedule.

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

Students read temperatures on thermometers and identify where changes of temperature would be marked.

Students find the perimeters for range of different 4-sided polygons.

Students work out how long a race took given the starting and finishing time. Answers are split into hours, minutes and seconds.

Students work out time calculations involving 24 hour time.

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

Students convert units of weight - grams and kilograms - to answer questions a range of food items.

Students demonstrate their understanding of order of operations by explaining how a correct answer is calculated.

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

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

Students add up the times for a number of exercises to get the total.

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

Students add up amounts of money including dollars and cents.

Students answer questions about international time differences.

Students write addition, subtraction, multiplication, and division story problems for given car advertisements.

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

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.

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 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.

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