210
105
The idea is to divide 210 / 3.
one half means divide by two-- that fact is worth remembering! 420 is especially easy to divide by 2, since all of the digits can be divided by 2. Divide 2 into 4 to get 2; divide two into 2 to get 1 and divide 2 into 0 to get 0, so the answer is 210.
0.2
210
Example: 210 Divide it by 2 105 Divide that by 3. 35 Divide that by 5 7 7 is prime and can't be divided further. 2 x 3 x 5 x 7 = 210
Divide the number by 10. e.g.. 210 divided by 10= 21divide that by 2. e.g. 21 divided by 2= 11.5Take that off the original number. e.g. 210-11.5=198.5
210 divided by 30 equals 7 and 30 x 7 is 210.
105
The idea is to divide 210 / 3.
0.4
one half means divide by two-- that fact is worth remembering! 420 is especially easy to divide by 2, since all of the digits can be divided by 2. Divide 2 into 4 to get 2; divide two into 2 to get 1 and divide 2 into 0 to get 0, so the answer is 210.
433 ÷ 210 = 2 13/210
210
0.2
105