Maths Mini Projects By Emi, Ga-yeon and Alisha
A book of mini projects
Photo Albums
Nana was showing Kate the family photo album. In one picture, it shows Nana playing in a mud hole, when she was young. 1 If Nana is 69 years old and the year is 2015, what year was Nana born in? 2 In the photo, Nana is 21 years old. A How many years ago was the photo taken? B What year was the photo taken? 3A nother photo shows Kate as a baby. A If Kate is 8 years old now, and the photo was taken 7 years ago, how old was Kate when the photo was taken? B Using the information from 3A, IF the photo was taken in 1942, what year would it be now? 4 A different photo shows Nana with a baby, that is Kate’s mum, who is currently 39 years old. A How old was Nana when Kate’s mum was born? B Which year was the photo taken in?
Lemonade Stall
Harriet and her friend Wendy were running a lemonade stand. They sold: 8 lemonades between 9 am and 10 am 12 lemonades between 10 am and 11:30 am 13 lemonades between 11:30 am and 12 noon 1 How many lemonades did the girls sell between 9 am and and 11:30 am? 2 How many lemonades did the girls sell altogether? 3 They also sold peanut cookies and popcorn as well as the lemonade. A The girls sold 3 times as much cookies as they did lemonade between 9 am and 11:30 am. How many cookies did they sell? B The popcorn was put into zip lock bags, each containing approximately 37 pieces each. Mr Brown bought 5 bags. How many pieces of popcorn was that approximately?
Buying for Christmas (double page)
Timothy was planning on buying presents for his relatives on Christmas. He made a list of items he wanted to buy: $ $ $ $ $ $ $ $
36.60 19.50 6.99 26.30 9.99 8.50 3.80 5.99
A potted cactus- Mom A bottle of wine- Dad A box of chocolates- Auntie Green A table tennis set- Uncle Hugh A New Years calendar - Grandma A chess set - Grandpa A bag of lollies- Cousin Nate A teddy bear- Cousin Emily
1 How much did that cost altogether? 2 If Timothy had $150.50 dollars and he bought all the items, how much money would he have left? 3 What costs the most? The calendar and the cactus
The table tennis set and the wine The teddy bear, the box of chocolates and the chess set 4 When Timothy arrived at the shops, he found that some items had discounts. A What would the table tennis set cost if it was on 50% discount? B What would the chess set cost if it was on 50% discount? C What would the calendar cost if it was on 25% discount? 5 Grandma and Auntie Green were on holiday, but Timothy wanted to send them their presents by mail. A Shipping the calendar would cost quarter of the calendar’s prices. How much would it cost? B Shipping the chocolates would cost half of the chocolate box price. How much would it cost? 6 Bags of lollies were sold in packs of 30. Timothy expected the lollies to be in bags of half that much. How many lollies in a bag did he expect? 7 It was unexpected that Uncle Dean decided to drop by for Christmas. Timothy decided to buy him a present anyway. If Timothy had $149.00, and he bought all of the
presents on the first list, how much money would he have left to spend?
Tiling the bathroom
Manuka and her dad were tiling the bathroom. The bathroom had an area of 16 foot square. Each tile was 1 foot square. 1 Each tile costs $3.50. How much would it cost to tile the whole bathroom? 2 Tile glue is sold in little packets. A If one packet contains enough glue to glue 8 tiles, how many packets would Manuka and dad need? B If one packet contains enough glue to glue 2 tiles, how many packets would Manuka need? 3 The glue needs to be mixed with water first. If 100g of glue powder needs to be mixed with 60ml water, how much water needed to mix with 400g of glue powder? 4 Manuka decided to tile the wall with leftover tiles. Each tile needs 50ml glue. A If Manuka had 400ml glue, how much tiles could she glue?
Flower Bunches
Emily was buying flowers for her mother on Mother’s Day. Here is the price of each flower: African Lily Red Rose Carnation Calla Daffodil Orchid
-$2.99 each -$3.99 each -$1.50 each -$2.50 each -$3.00 each -$3.50 each
1 How much would a bunch cost with: 2 African Lillies, 3 Calla, 5 Orchids and 1 Daffodil? 2 How much would a bunch cost with: 7 Carnations, 5 Red Roses, 2 Calla and 4 Daffodils? 3 How much would a bunch cost with: 6 African Lillies, 3 Calla, 2 Orchids and 1 Red Rose? 4 How much would a bunch cost with: 6 Red Roses, 5 Carnation and 2 Orchids IF the Carnations were on 50% discount?
Electricity Bills
Reymond was eager to minimize the amount his family spends on electricity a month. His family usually spends $250.00 a month. 1 Reymond turned off the lights in his bedroom whenever he was not in there. This helped by saving $10.20. How much did the family spend now? 2 If turning off the lights in a room for 2 hours saved $5.00 and Reymond turned off all the lights in all 5 rooms, how much money was saved? 3 Unfortunately, Reymond’s younger brother Tom keeps the tv on whenever no-one is there, this adds an extra $30.00. How much money did the family pay now? 4 The family decided to install solar panels on the roof, this saves $62.00 every month out of $250.00 for a year. How much money does the family have to pay over a year?
Money Dog
Caleb was in charge of buying dog food and feeding the dog for a month. He carefully planned ahead so no money will be wasted. 1 At DogEat, the price for 1kg bag of dog food is $10.00. The dog eats 100g of food per day. How much bags will Caleb need? 2 Following question 1, how much money will Caleb spend on the bags of dog food? 3 How much food does the dog eat over a 30 day month? 4 If Caleb had $100.00, and he bought enough dog food bags to last a month, how much money will he have left?
Look out for more Mini Projects By Emi, Ga-yeon and Alisha