Addition and subtraction - Check answers - Starter

In a vibrant mathematics lesson for Year 3 students during the Autumn Term, Week 8, Day 4, the children are encouraged to sharpen their numerical estimation and calculation skills. They begin with a 'Fluent in Four' revision exercise, which requires them to estimate the result of simple divisions such as 18 divided by 2, and then proceed to solve a series of addition and subtraction problems. These include calculations like 297 plus 47 and 891 minus 47, as well as more complex sums involving three numbers. The lesson also explores practical applications of multiplication, asking how many slices can be made from nine pineapples if one pineapple yields 17 slices. Additionally, students are tasked with ordering the heights of various cans—orange, green, and blue—in ascending order, converting and comparing measurements in centimetres and millimetres to determine the correct sequence.

Progressing to Day 5 of the same week, the children continue to build on their arithmetic proficiency. They tackle problems such as subtracting 39 from the sum of 17 ones and five tens, and finding a missing number in an addition equation that sums to 73. The concept of capacity and volume is introduced, prompting students to describe these attributes of a given container. In a practical scenario, they calculate the remaining number of balloons Mark has after selling a portion from his initial stock of 457, using a bar model and addition to verify their answers. The lesson also includes a fun football-themed question, where students determine which two forwards—Messi, Kane, Ronaldo, or Salah—scored more goals together than Messi alone, and they sum up the total goals scored by the three best forwards. The volume and capacity of a container are also addressed, with students required to fill in the blanks with the correct measurements in litres and millilitres.