Max Maths, Year 6, Learn together, Review of adding and subtracting decimals (2)

In a mathematics lesson designed for Year 6 students, the task is to review the addition of decimal numbers, specifically focusing on the sum of 6.18 and 11.97. The process is divided into three clear steps to ensure understanding and accuracy. In the first step, students add the hundredths, combining 8 hundredths from 6.18 with 7 hundredths from 11.97, resulting in 15 hundredths. Since this is more than 10 hundredths, they regroup by carrying 1 tenth to the tenths column and leaving 5 hundredths in the hundredths place.

The next step involves adding the tenths. Here, students add the carried over 1 tenth to the 1 tenth from 6.18 and the 9 tenths from 11.97. This totals 11 tenths, which again requires regrouping. They carry over 1 one to the ones column and place the remaining 1 tenth in the tenths column. In the final step, the ones are added together, including the carried over 1 one. The ones from 6.18 are added to the ones from 11.97, along with the extra one from the regrouping, to get a total of 18 ones. The complete calculation shows that 6.18 plus 11.97 equals 18.15, demonstrating the importance of careful regrouping in decimal addition.