Addition and subtraction - Subtract a two-digit number from a ​three-digit number crossing 100 - Starter

In the context of a Year 3 mathematics lesson, students are challenged with a series of exercises aimed at enhancing their understanding of subtraction and addition, particularly when subtracting a two-digit number from a three-digit number and crossing the hundred boundary. The lesson starts with a 'Fluent in Four' revision task, where students complete bar models to visually represent and solve subtraction problems, such as determining the result of subtracting forty-eight from sixty-three. They also tackle addition problems, filling in the missing number in an equation like twenty-eight plus an unknown number equals ninety-two.

Further exercises include performing straightforward calculations, such as subtracting ninety from seven hundred fifty-four and comparing it with similar problems to reinforce their learning. To develop their data handling skills, students use a tally chart to complete a pictogram representing house points for different classes, translating tallies into pictorial representations with a key where one image represents five points. Additionally, the lesson involves a comparison task where students must determine how many peaches weigh the same as a set number of ice creams, and vice versa, using a given equivalence. This helps them understand the concept of weight comparison and the use of ratios in practical scenarios.