2.4/3. 3 goes into 2 0 times. 0 *3 is 0. 2-0 is 2. Bring down the four. 3 goes into 24 8 times. Bring the decimal directly above where it is above the bar. The answer is 0.8. (Sorry there are no pics).
X+y=20 xy=99 Let a+b be denoted a,b 20 = 1,19 2,18 3,17 4,16 5,15, 6,14 7,13 8,12 (9,11) ..Stop 99=3^2*11 Thus the ages are 11 and 9 with a difference of 2.
