Step-by-step reasoning process: Five sheet have 5 x 10 = 50 stickers. Therefore, Xia had 100 + 50 = 150 stickers at the beginning.
[Q & A] The question is After sharing 100 stickers with her friends, Xia had five sheets of stickers left. If each sheet had ten stickers on it, how many stickers did Xia have at the beginning?
The answer is 150

Step-by-step reasoning process: He buys 4 * 30 = 120 stickers. That means it cost 120 * .1 = $12. So he pays 12 * .5 = $6.
[Q & A] The question is James splits 4 packs of stickers that have 30 stickers each. Each sticker cost $.10. If his friend pays for half how much did James pay?
The answer is 6

Step-by-step reasoning process: Julia buys 4 * 3 = 12 pens. Dorothy buys 12 / 2 = 6 pens. The total number of pens purchased is 4 + 12 + 6 = 22 pens. The total cost of the pens is 22 * $1.50 = $33.
[Q & A] The question is Dorothy, Julia, and Robert go to the store to buy school supplies. Dorothy buys half as many pens as Julia. Julia buys three times as many pens as Robert. Robert buys 4 pens. If one pen costs $1.50, how much money did the three friends spend in total on pens?
The answer is 33

Step-by-step reasoning process: Oliver's $20 bills amount to $20 x 10 = $200. Oliver's $5 bills amount to $5 x 3 = $15. So, Oliver has a total of $200 + $15 = $215. William's $10 bills amount to $10 x 15 = $150. William's $5 bills amount to $5 x 4 = $20. So, William has a total of $150 + $20 = $170. Therefore, Oliver has $215 - $170 = $45 more than William.
[Q & A]
The question is Oliver has 10 $20 and 3 $5 bills. William has 15 $10 and 4 $5 bills. How much more money does Oliver have than William?
The answer is 45