Assuming you mean using only positive whole numbers:
1 x 61 (only as 61 is a Prime number)
estimate of 24 mulitply by 15 = 300estimate of 24 = 2020 * 15 = 300
Multiply the number by 0.2
Mulitply 65 by .6666.
(40/5)*4 = 32
Mulitply the number by itself
dah
estimate of 24 mulitply by 15 = 300estimate of 24 = 2020 * 15 = 300
multiplicar
Mulitply your area by four
Multiply the number by 0.2
51 and 8
Mulitply 65 by .6666.
no if yes there would be an available example
25*25
mulitply 6*4
2 x 6 = 12
Mulitply the number by itself