mutiply the number by .30
3
Divide mutiply and add
2
Yo make it easy, you cover both the zeros and multiply. 3x5=15 30x50=150
Mutiply it by a hundred as for example 3/4 times 100 = 75%
1, 2 and 3 are the same whether you multiply or add them.
you multiply 3 digit numbers by killing yourself and giving away body parts.
23
you mutiply it by 5 and ten divide by the number 3 in your case.
11 * 0.3 = 11 * 3 / 10 = 33 / 10 = 3.3
so you grabe 3 and you need to mutiply 1 so you can put the problem to 3+0 and 3+0=3. That how you mutiply 3 in 1 The second way is for small number were you ask yourself how many time can I put 3 in 1.