James buys a weight vest for $250. He then buys 200 pounds of weight plates for $1.2 per pound. A 200-pound weight vest would cost $700 but there is a $100 discount. How much does he save with his vest?

The weight plates cost 200*1.2=$

<<200*1.2=240>>240 So his vest cost 250+240=$<<250+240=490>>490 He could get the other vest for 700-100=$<<700-100=600>>600 So he saved 600-490=$<<600-490=110>>110 #### 110 Ms. Hatcher teaches 20 third-graders and a number of fourth-graders that is twice the number of third-graders. Her co-teacher asked her to substitute for her fifth-grade class that has half as many students as the number of third-graders. How many students did Ms. Hatcher teach for the day? Ms. Hatcher taught 20 x 2 = <<20*2=40>>40 fourth graders for the day. She taught 20 / 2 = <<20/2=10>>10 fifth-graders as a substitute teacher for the day. Therefore, she taught 20 + 40 + 10 = <<20+40+10=70>>70 students for the day. #### 70 John buys 20 bars of soap each weighing 1.5 pounds for $.5 per pound. How much money did he spend on soap? He bought 20*1.5=<<20*1.5=30>>30 pounds of soap That cost 30*.5=$<<30*.5=15>>15 #### 15 At a softball game, three players are having a sunflower eating contest. The first player eats 78 seeds. The second eats 53 seeds. The third eats 30 more seeds than the second. How many do they eat in total? The third player eats 83 seeds because 53 + 30 = <<53+30=83>>83 They eat 214 in total because 78 + 53 + 83 = <<78+53+83=214>>214 #### 214 A few friends are making a small movie. They hire a few actors and that cost $1200. They also get food for the 50 people there. Each person gets $3 worth of food. Equipment rental costs twice as much as food and actors combined. They sold the movie for $10,000. How much profit did they make? The food cost 3*50=$<<3*50=150>>150 So the total cost without equipment rental was 1200+150=$<<1200+150=1350>>1350 So equipment rental cost 1350*2=$<<1350*2=2700>>2700 So the total cost was 2700+1350=$<<2700+1350=4050>>4050 That means they made 10000-4050=$<<10000-4050=5950>>5950 #### 5950 June found 2 birds nest with 5 eggs each in 1 tree and 1 nest with 3 eggs in another tree. There was also a nest with 4 eggs in her front yard. How many birds eggs did she find? There are 2 nests with 5 eggs each so 2*5 = <<2*5=10>>10 eggs When you add up all the eggs she has found she has 10+3+4 = <<10+3+4=17>>17 eggs #### 17 Lucas' father offers to pay him $2 for each window in the house that he cleans. Each floor of Lucas' house has 3 windows; Lucas lives in a 3-story house. To get Lucas to finish the job faster, his father tells him that he will subtract $1 for every 3 days that pass without Lucas finishing the job. In 6 days, Lucas finishes cleaning all the windows in the house. How much will his father pay him, in dollars? Lucas cleans a total of 3 floors * 3 windows/floor = <<3*3=9>>9 windows. The windows cleaned earn Lucas 2 dollars each, so Lucas earns 9 windows * $2/window = $<<9*2=18>>18 For taking 6 days to clean, Lucas' father subtracts 6 days / $3/day = $<<6/3=2>>2 In total, Lucas' father will pay him $18 - $2 = $<<18-2=16>>16 #### 16 Julie is making caesar salad for a family picnic. At the market, she spends $8 on green lettuce and $6 on red lettuce. If each type of lettuce costs $2 per pound, how many total pounds of lettuce did she buy? The total cost of the green and red lettuce is $8 + $6 = $<<8+6=14>>14. Julie bought $14 / $2 =<<14/2=7>>7 pounds of lettuce. #### 7 Owen bought 12 boxes of face masks that cost $9 per box. Each box has 50 pieces of masks. He repacked 6 of these boxes and sold them for $5 per 25 pieces. He sold the remaining 300 face masks in baggies at the rate of 10 pieces of mask for $3. How much profit did he make? Owen bought 12 boxes for a total of $9/box x 12 boxes = $<<9*12=108>>108. Six boxes contains 6 boxes x 50 masks/box = <<6*50=300>>300 face masks. Owen made 300 masks / 25 masks/repack = <<300/25=12>>12 repacks. So, his revenue for selling those repacked face masks is $5 x 12 repacks = $<<5*12=60>>60. There are 300 masks / 10 masks/baggy = <<300/10=30>>30 baggies face masks. So, his revenue for that is $3/baggy x 30 baggies = $<<3*30=90>>90. Hence, his total revenue for all the face masks is $60 + $90 = $<<60+90=150>>150. This gives him a profit of $150 - $108 = $<<150-108=42>>42. #### 42 Ali's class wants to order 35 English textbooks and 35 geography textbooks. Knowing that a geography book costs $10.50 and that an English book costs $7.50, what is the amount of this order? The cost of the geography books is 35 * 10.5 = $<<35*10.5=367.5>>367.5. The cost of the English books is 35 * 7.5 = $<<35*7.5=262.5>>262.5. The total amount of the order is 367.5 + 262.5 = $<<367.5+262.5=630>>630. #### 630