You can see that multiplication works both ways:
2x9=18 9x2=18
5x9=45 9x5=45
Arrays are also helpful in seeing the inverse relationship between multiplication and division.
7x9 is the multiplication fact that can be found using the arrays 2x9 and 5x9.
Some common multiplication strategies include the Latis Strategy, The Algebra Strategy, and the Stacking Strategy.
9
Using reciprocals, a/b divided by c/d is the same as a/b times d/c. If you multiply this, you get ad/bc.Without thinking about this as reciprocals, you can do this multiplication directly, cross-multiplication so to speak.
because later in life you will need to times and if you don't know how your scrued or if you became a parent and you don't know how to time and your child ask 25X5 you don't know that's it your child thinks why my parent don't remember Multiplication so you need it and sometimes you need to count using Multiplication
7x9 is the multiplication fact that can be found using the arrays 2x9 and 5x9.
7x9
3 times 9 and 7 times 9.
The multiplication fact (singular, not plural 'facts') that can be found is 7x9 = 63. Using the arrays, a 2x9 array (2 rows of 9 items) and 5x9 array (5 rows of 9 items) is 63: 2x9 = 18 5x9 = 45 18 + 45 = 63
9+9 and 9+9+9+9+9
Some common multiplication strategies include the Latis Strategy, The Algebra Strategy, and the Stacking Strategy.
10 x 5?
9
Using multiplication 40 times 45 = 1800
They both cannot be
3 times 35 equals 105
It is equivalent to multiplying by the cube of that number.