Some less confident children might find adding so many numbers at once intimidating, so it's fine to do this step in two parts. Once all the numbers have been multiplied, write out a column addition to find the sum of all three. Insert a decimal point in the product so it has the same number of decimal places equal to the total from step 1.

In this article, we will walk you through solving various types of multiplication problems using grid method. Grid Method: Multiplying A Two-Digit Number By A Two-Digit NumberThe grid method of multiplication, also known as the box method, is a way of doing long multiplication by breaking numbers down into place values and writing them out in a grid. A school usually starts introducing the multiplication grid method in maths at the start of Key Stage 2, when children go into Year Three, although some introduce it as early as Year Two. In some ways, this is even easier than the grid method example above with a 2-digit number, since using a 1-digit number means there's only one row to deal with. We just need an extra column in for the hundreds. Then, follow the same method as above, multiplying each number in the top row by the one in the left-hand column:

Long multiplication means you're doing multiplication by hand. The traditional method, or Standard Algorithm, involves multiplying numbers and lining up results according to place value. These are the steps to do long multiplication by hand: The first number, 23, is made up of the number 20 and the number 3. That means we need to write 20 and 3 in the boxes to the right of the X. Most children won't have covered decimal multiplication in Lower KS2, so convert the numbers to pence before you start. Then, work through the grid as if you were multiplying a three-digit number by a one-digit number.

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Using the grid method to do long multiplication gets children to break the numbers down into hundreds, tens and ones before multiplying them. This helps the child to understand what each digit in a number represents and what's actually happening to the numbers when they are multiplied. This helps children who are struggling by letting them visualise the process more easily. Current use: The centimeter, like the meter, is used in all sorts of applications worldwide (in countries that have undergone metrication) in instances where a smaller denomination of the meter is required. Height is commonly measured in centimeters outside of countries like the United States. Millimeter Now, we just need to add all the numbers together. Take all four of the answers you have just found, and write them out as a column addition (or whichever addition method the child you are helping is most comfortable with):