10 x 21 = 210
2 x 21 = 42
210 + 42 = 252
12 x 21 = 252
21 times 12 equals 252.
1.75 x 12 = 21
12. 252 / 21
24
The patterns and properties to compute mentally 120 times 30 is the numbers 12 and 3 plus the two 0. Multiply 12 by 3 (36) and add the two 0 (3600).
12
21 x 12 = 252 square feet.
It is: 12/21 times 100 = 57.'142857'% recurring decimal '142857'
It goes: 256/21 = 12 times with a remainder of 4
Exactly 12 times
12 times 9 = 108
Yes, it does.