Max Maths, Year 4, Learn together, Word problems (2)

In a Year 4 mathematics lesson from Max Maths, students are presented with a practical application of addition through a word problem involving the mass of school books. Tya's school books weigh 655 grams, while Padma's weigh 478 grams. The problem set for the students is to calculate the combined mass of both Tya's and Padma's books. The method to solve this problem involves a step-by-step addition process, breaking down the numbers into ones, tens, and hundreds for easier calculation.

The first step is to add the ones place: 5 ones from Tya's books and 8 ones from Padma's books, which totals to 13 ones. This is then regrouped into 1 ten and 3 ones. The next step is to add the tens place: 1 ten that was regrouped, plus 5 tens from Tya's books and 7 tens from Padma's books, making a total of 13 tens. Again, this is regrouped into 1 hundred and 3 tens. The final step is to add the hundreds place: 1 hundred from the regrouped tens, plus 6 hundreds from Tya's books and 4 hundreds from Padma's books, resulting in 11 hundreds which is then regrouped into 1 thousand and 1 hundred. After completing these steps, the students find that the total mass of the books is 1,133 grams.