2x9=18 9x2=18
5x9=45 9x5=45 and that the arrays for 2x9 and 5x9
thank you
5x9=45 9x5=45 and that the arrays for 2x9 and 5x9
thank you
What Multiplication Fact Can Be Found By Using The Arrays For 2x 9 And 5x9?
18*2 and 45*2
The facts for the two arrays are as follows;
2X9=18 and the second fact is 9X2=18
Similarly
5X9=45 and the second fact is 9X5=45
2X9=18 and the second fact is 9X2=18
Similarly
5X9=45 and the second fact is 9X5=45
These are 1x2 and 1x2 arrays.
[ (2*5 ) + (2*9) (9*5 + 9*9) ]
[ 10 + 18 45 + 81 ]
[ 28 126 ]
[ (2*5 ) + (2*9) (9*5 + 9*9) ]
[ 10 + 18 45 + 81 ]
[ 28 126 ]
Certainly, you can join them to produce the 7x9 fact.
18
18 and 45
18 and 45
18
These are 1x2 and 1x2 arrays.
[ (2*5 ) + (2*9) (9*5 + 9*9) ]
[ 10 + 18 45 + 81 ]
[ 28 126 ]
[ (2*5 ) + (2*9) (9*5 + 9*9) ]
[ 10 + 18 45 + 81 ]
[ 28 126 ]