What multiplication fact can be found by using arrays for 2x9 and 5x9?

7 times 9

67

What multiplication fact can be found using the arrays of 2x5 and 5x9

To find the multiplication facts for 2x9 and 5x9 using arrays, you can draw visual representations of the arrays.

For 2x9, draw an array with 2 rows and 9 columns:
```
X X X X X X X X X
X X X X X X X X X
```
Count the total number of X's in the array, which is 18. So, the multiplication fact for 2x9 is 18.

For 5x9, draw an array with 5 rows and 9 columns:
```
X X X X X X X X X
X X X X X X X X X
X X X X X X X X X
X X X X X X X X X
X X X X X X X X X
```
Count the total number of X's in the array, which is 45. So, the multiplication fact for 5x9 is 45.

Therefore, using arrays, you can find that 2x9 equals 18 and 5x9 equals 45.