105 * 10, 21 * 50 and a bunch more.
7 & 3
21/10
21
21
10 over 21
10/21 x 14/15 = 140/315 = 4/9
The numbers are: 21 and -10
Move the decimal in 2.1m one place to the left. You will get .21 m or 21 cm. Or you multiple 10% by 2.1m to get 0.21m. Or you change 10 % into a decimal [10% = 0.10] then multiply by 2.1m
Given 20 and 50%, multiply 20 by 0.5, which equals 10. Given 70 and 30%, multiply 70 by 0.3, which equals 21. Or if you prefer, given 20 and 50%, multiply 2 by 5, which equals 10. Or if you prefer, given 70 and 30%, multiply 7 by 3, which equals 21.
10 and 21, 5 and 42, 14 and 15, 2 ans 105 ect.
365 multiply by 24 then multiply that answer by 21 and it is 183960