Max Maths, Year 2, Learn together, Rounding numbers

In Max Maths for Year 2, students learn the concept of rounding numbers to the nearest ten in an engaging and interactive way. The lesson begins with a practical example: a box containing 18 books. The question posed is how to round this number to the nearest ten. A number line is provided to help visualise the numbers from 10 to 20, making it clear that 18 is closer to 20 than to 10. The key rule taught here is that when the units digit is 5 or more, the tens digit is increased by one, which means rounding up. Therefore, 18 is rounded up to 20, expressed as 18 ≈ 20.

Another example given is a box with 33 pencils. Students are asked to round this number to the nearest ten. The lesson explains that since the units digit is less than 5, the number is rounded down, leaving the tens digit unchanged. This means that 33 is rounded down to 30, written as 33 ≈ 30. The concept is further reinforced with the number 75, which is exactly between 70 and 80. In such cases, where the number is halfway between two tens, the rule is to round up. Thus, 75 is rounded up to 80, noted as 75 ≈ 80. Through these examples, children learn to quickly and accurately estimate numbers by rounding them to the nearest ten.