<span> allows you to </span>do<span> repeated addition quickly and efficiently</span>
24 3-pound bags(72 pounds) and 10 5-pound bags(50 pounds). 72+50 = 122 pounds, 24+10 bags = 34 bags.
-1, -8
0, -9
1, -10
2, -11
Hope that helps!
2/5=4/10=12/30 1/3=10/30 12/30+10/30=22/30 22/30=11/15
