Lattice Multiplication Concepts

The video tutorial explains how to use lattice multiplication to multiply two two-digit numbers. It begins by setting up a two-by-two table and placing the numbers 27 and 29 along the top and right sides, respectively. The process involves drawing diagonals in the smaller rectangles and multiplying the digits, recording the results in each cell. The final product is determined by adding the numbers along the diagonals, resulting in a product of 783.

What is the first step in setting up a lattice multiplication grid for two two-digit numbers?

• Draw a three by three table.

• Multiply the numbers directly.

• Add the numbers diagonally.

• Record the numbers along the top and right sides.

When multiplying individual digits in lattice multiplication, what do you do if the product is a single-digit number?

• Record the number as it is.

• Add a zero before the number.

• Multiply it by ten.

• Ignore the number.

What is the result of multiplying 7 by 9 in the lattice grid?

• 72

• 63

• 56

• 49

How do you determine the final product in lattice multiplication?

• Divide the total by two.

• Add the numbers along the diagonals.

• Multiply all numbers in the grid.

• Subtract the smallest number from the largest.

What is the final product of multiplying 27 by 29 using lattice multiplication?

• 783

• 729

• 812

• 756