Rectangular Arrays Using rectangular arrays is another method on our list of common core multiplication strategies for 3rd and 4th graders. It is quite similar to the one I explained above, except ...

Setting up the array The array method only works when one of the numbers being multiplied is bigger than 10. Look at both numbers and, where necessary, split into tens and ones. Draw out a rectangle.

An array close arrayAn array in maths is an arrangement of objects, numbers or pictures in columns or rows. is a rectangular arrangement to represent multiplication. This can be drawn as a ...