Knowing your is an ideal way to move on to other ways to solve multiplication problems.
Find 8 \times 3.
Let's see how we use the partition, array, and area method to multiply 2 digit numbers by 1 digit numbers, then see how we could use an algorithm to solve our problem.
Let's use an area model to find 77 \times 3.
Fill in the areas of each rectangle.
What is the total area of all four rectangles?
Find 77 \times 3.
We can also use the strategies we've seen above to multiply larger numbers, so let's see how the area method can be used. Then we solve the same problem, using a vertical algorithm. Which do you prefer?
Find 6178 \times 4.
selects and applies appropriate strategies for multiplication and division, and applies the order of operations to calculations involving more than one operation