Question

Higher Order Thinking Show two different ways to add up to find 72 - 35.
72-35 = 37

Answer 1

Subtraction of 72 - 35 can be solved using the Standard Algorithm or the Counting Up method. The Standard Algorithm involves vertical subtraction with borrowing if needed, while Counting Up starts from 35 and counts up to 72, adding up the increments to find the sum of 37.

Step-by-step explanation:

The task is to show two different ways to calculate the subtraction problem 72 - 35. There are multiple strategies one can use to solve this. Here are two ways:

1. Standard Algorithm: This is the typical method taught in schools. Write the numbers vertically and subtract each column starting from the ones place. If necessary, borrow from the next column.
2. Counting Up: Start from the number you are subtracting (35) and count up to the number you started with (72). You can make jumps in tens and ones to make it easier. For example, from 35 to 40 is 5, and from 40 to 70 is 30, and from 70 to 72 is 2. Add up the jumps: 5 + 30 + 2 = 37.

Both methods will yield the correct result: 37.

Remember that the rules of mathematics are universally valid, so no matter which method you choose, the outcome should be the same.