I think its 104 because if you do 13 x 8 = 104 you will get that answer and also if you know your multiplication facts.
multiplication facts are simply that times table in this case 5
(72 x 1) (36 x 2) (24 x 3) (18 x 4) (12 x 6) (9 x 8)
Yes - double, then double and then double again is the same as multiplying by 8.
3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60
I think its 104 because if you do 13 x 8 = 104 you will get that answer and also if you know your multiplication facts.
multiplication facts are simply that times table in this case 5
1x3=3x3=9
(72 x 1) (36 x 2) (24 x 3) (18 x 4) (12 x 6) (9 x 8)
multiplication fact means the truth
Yes - double, then double and then double again is the same as multiplying by 8.
each side is multiplied together.
Multiplication facts and tables can be found all over the internet. A good place for worksheets for multiplication is through the Education website. Also, many teacher stores will have products regarding multiplication.
3,6,9,12,15,18,21,24,27,30,33,36,39,42,45,48,51,54,57,60
1 x 56, 2 x 28, 4 x 14, 7 x 8.
Some multiplication facts for 81 are 9 x 9 3 x 27 1 x 81
If you know them up to at least 9, you will be able to do big multiplication problems as well as move on to division, algebra, and maybe even calculus.