The P.T.O. decided to provide shirts for the elementary students for track and field day. Each grade was given a different color. 101 Kindergartners wore orange shirts that cost $5.80 each. 113 first graders wore yellow shirts that cost $5 each. 107 second graders wore blue shirts that cost $5.60 each. 108 third graders wore green shirts that cost $5.25 each. How much did the P.T.O. spend on shirts for field day?

How much did the P.T.O. spend on shirts for field day? ** The cost for 101 Kindergarten shirts x $5.80 = $

<<101*5.80=585.80>>585.80. How much did the P.T.O. spend on shirts for field day? ** The cost for 113 first grade shirts x $5 = $<<113*5=565>>565. How much did the P.T.O. spend on shirts for field day? ** The cost for 107 second grade shirts x $5.60 = $<<107*5.60=599.20>>599.20. How much did the P.T.O. spend on shirts for field day? ** The cost for 108 third grade shirts x $5.25 = $<<108*5.25=567>>567. How much did the P.T.O. spend on shirts for field day? ** The total cost of the shirts was $585.80 + $565 + $599.20 + $567 = $<<585.8+565+599.2+567=2317>>2,317 #### 2,317 A bottle can hold 2 cups of water. How many cups of water are needed to fill up 10 whole bottles and 5 half-capacity bottles? How many cups of water are needed to fill up 10 whole bottles? ** For 10 whole bottles, you will need 10*2=<<10*2=20>>20 cups of water. How many cups of water are needed to fill up 5 half-capacity bottles? ** With 5 half-capacity bottles, it requires 5*1=<<5*1=5>>5 cups of water. How many cups of water are needed to fill up 10 whole bottles and 5 half-capacity bottles? ** In total, you need to have 25+5=<<25+5=30>>30 cups of water to fill them all. #### 30 Hazel and Razel are twins who share everything they receive. If Hazel received 6 shirts, while Razel received twice the number of shirts as Hazel. How many shirts do they have in total? How many shirts did Razel receive? ** Razel received 6 x 2 = <<6*2=12>>12 shirts. How many shirts do Hazel and Razel have in total? ** Therefore, they have 12 + 6 = <<12+6=18>>18 shirts altogether. #### 18 Jamal works at a library shelving books. He has a cart full of books to put away in different sections. In the history section, he shelves 12 books. In the fiction section, he shelves 19 books. In the children’s section, he shelves 8 books but finds 4 that were left in the wrong place that he adds to his cart to shelve elsewhere. He still has 16 books to shelve. How many books did he start with in the cart? How many books did Jamal start with? ** Jamal started with B books in the cart. How many books did Jamal have after the history section? ** He had B - 12 books after the history section. How many books did Jamal have after the fiction section? ** He had B - 12 - 19 = B - 31 books after the fiction section. How many books did Jamal have after the children’s section? ** He had B - 31 - 8 + 4 = B - 35 books after the children’s section. How many books did Jamal have left to shelve? ** He still had B - 35 = 16 books to shelve. How many books did Jamal start with? ** Thus, he started with B = 16 + 35 = <<16+35=51>>51 books in the cart. #### 51 Bill and Ted head to the river to throw stuff into the water. Bill throws 6 more sticks into the river than Ted does, but Ted tosses twice as many rocks into the river as Bill. If Ted tosses 10 sticks and 10 rocks into the river, how many objects did Bill toss into the river? How many sticks does Bill throw into the river? ** Bill throws 10 + 6 = <<10+6=16>>16 sticks into the river. How many rocks does Bill throw into the river? ** Bill throws 10 / 2 = <<10/2=5>>5 rocks into the river. How many objects does Bill throw into the river? ** Bill throws 16 + 5 = <<16+5=21>>21 objects in total into the river. #### 21 An internet provider gives a 5% discount if the customer pays before the 25th day of the month. If the monthly internet rate is $50, how much did the customer pay in all for 4 months if he paid every 25th of the month? How much is the discount? ** The 5% discount amounts to $50 x 5/100 = $<<50*5/100=2.50>>2.50. How much was the total discount given to the customer for 4 months? ** So the total discount given to the customer for 4 months was $2.50 x 4 = $<<2.5*4=10>>10. How much was the customer supposed to pay in all for 4 months? ** The customer was supposed to pay $50 x 4 = $<<50*4=200>>200 in all for 4 months without discount. How much did the customer pay in all for 4 months? ** Since the customer is entitled to the discount, then he only paid a total of $200 - $10 = $<<200-10=190>>190 for 4 months. #### 190 Jerome bought 5 new toy cars last month. This month he bought twice as many so that he has 40 toy cars now. How many toy cars did Jerome have originally? How many toy cars did Jerome buy this month? ** Jerome bought 5 x 2 = <<5*2=10>>10 toy cars this month. How many toy cars did Jerome buy in total? ** So he bought a total of 5 + 10 = <<5+10=15>>15 toy cars. How many toy cars did Jerome have originally? ** Therefore, Jerome had 40 - 15 = <<40-15=25>>25 toy cars originally. #### 25 Olivia's insurance premium starts out at $50/month. It goes up 10% for every accident and $5/month for every ticket. If she gets in one accident and gets 3 tickets, what's her new insurance premium? How much does the accident increase the premium? ** First find the increase due to the accident: $50 * 10% = $<<50*10*.01=5>>5 How much does the tickets increase the premium? ** Then find the total increase due to the tickets: $5/ticket * 3 tickets = $<<5*3=15>>15 How much is the new premium? ** Then add both increases to the base price to find the new price: $50 + $5 + $15 = $<<50+5+15=70>>70 #### 70 A curry house sells curries that have varying levels of spice. Recently, a lot of the customers have been ordering very mild curries and the chefs have been having to throw away some wasted ingredients. To reduce cost and food wastage, the curry house starts monitoring how many ingredients are actually being used and changes their spending accordingly. The curry house needs 3 peppers for very spicy curries, 2 peppers for spicy curries, and only 1 pepper for mild curries. After adjusting their purchasing, the curry house now buys the exact amount of peppers they need. Previously, the curry house was buying enough peppers for 30 very spicy curries, 30 spicy curries, and 10 mild curries. They now buy enough peppers for 15 spicy curries and 90 mild curries. They no longer sell very spicy curries. How many fewer peppers does the curry house now buy? How many peppers did the curry house buy for very spicy curries? ** The curry house previously bought 3 peppers per very spicy curry * 30 very spicy curries = <<3*30=90>>90 peppers for very spicy curries. How many peppers did the curry house buy for spicy curries? ** They also bought 2 peppers per spicy curry * 30 spicy curries = <<2*30=60>>60 peppers for spicy curries. How many peppers did the curry house buy for mild curries? ** They also bought 1 pepper per mild curry * 10 mild curries = <<1*10=10>>10 peppers for mild curries. How many peppers did the curry house buy? ** So they were previously buying 90 + 60 + 10 = <<90+60+10=160>>160 peppers. How many peppers does the curry house now buy? ** They now buy 2 peppers per spicy curry * 15 spicy curries = <<2*15=30>>30 peppers for spicy curries. How many peppers does the curry house now buy? ** They also now buy 1 pepper per mild curry * 90 mild curries = <<1*90=90>>90 peppers for mild curries. How many peppers does the curry house now buy? ** So they now buy 30 + 90 = <<30+90=120>>120 peppers. How many peppers does the curry house now buy? ** This is a difference of 160 peppers bought originally - 120 peppers bought now = <<160-120=40>>40 peppers. #### 40 John decides to trade in his stereo system. His old system cost 250 dollars and he got 80% of the value for it. He then buys a system that costs $600 that he gets a 25% discount on. How much money came out of his pocket? How much did John get for his old system? ** He got 250*.8=$<<250*.8=200>>200 How much did John get a discount on the second system? ** He gets a 600*.25=$<<600*.25=150>>150 discount on the second system How much did John's second system cost? ** So it cost 600-150=$<<600-150=450>>450 How much money came out of his pocket? ** So he was 450-200=$<<450-200=250>>250 out of pocket #### 250