Week 8
If the perimeter of an oblong is the same as the perimeter of another oblong will their areas be the same?
Write your prediction. What do you think the answer is?
Carry out an investigation with oblongs that have a 50cm perimeter.
Graph your results.
1. 143 lollies are in the jar. If 88 get eaten how many are left. (Show 2 different ways of solving this)
2. Joe has a 2.4 l bottle of juice. He drank 750 ml. How much juice has he got left?
3.Joe has a 1.25 l bottle of juice. He drank 985 ml. How much juice has he got left?
4. On Wheels Day 276 children brought something to ride. 4/6 brought a bike. How many was that? 1/6 brought rollerblades so how many brought a skateboard?
5. There are 11 teams entered into a fun games competition. If each team has 14 players how many competitors are there altogether?
6. There are 225 competitors in a touch competition. Each team is allowed only 9 players. How many teams are there?
7. 2/6 of the choir haven't learnt there words yet. That means that 24 have. How many are in the class?
8. Jamie bought 4.1m of material then realised she didin't have enough so bought 2. 45m more. How much material did she buy altogether?
1. 132 lollies are in the jar. If 76 get eaten how many are left. (Show 2 different ways of solving this)
2. Joe has a 1.4 bottle of juice. He drank 800 ml. How much juice has he got left?
3. (If you managed the last question OK try this one)
Joe has a 1.2 bottle of juice. He drank 765 ml. How much juice has he got left?
4. On Wheels Day 325 children brought something to ride. 3/5 brought a bike. How many was that?
1/5 brought rollerblades so how many brought a skateboard?
5. There are 12 teams entered into a fun games competition. If each team has 13 players how many competitors are there altogether?
6. There are 176 competitors in a touch competition. Each team is allowed only 8 players. How many teams are there?
7. 3/8 of the choir haven't learnt there words yet. That means that 25 have. How many are in the class?
8. Jamie bought 2.3m of material then realised she didin't have enough so bought 1. 85m more. How much material did she buy altogether?
1. 134 people went into the hall. If 87 sat on one side how many were siting on the other?
2. Room 25 has got 32 children. In their stationery they each get 7 pencils. How many pencils is that altogether?
3. Mike has to walk 3.1 km to school whereas Stacey only has to walk 1895m. How much further than Stacey does Mike have to walk?
4. Ane's sprint time was 1minute 43.12 secs. Sue's was 1minute 29.08 secs. What was the difference between their times?
5. For a fundraiser a local shop has donated altogether an assortment of 276 pencils, pens and rubbers. If Lena is going to put 6 items in each bag to sell how many bags does she need?
6. The farmer has a field 512m2. He wants to fence off a strip that is 7/8 of the field. How big is the strip and how big then is the field?
7. In a mixed packet of ice-blocks there are 6 lime, 4 raspberry and 10 lemonade. How many of each colour would there be in a packet of 50 ice-blocks?
8. A factory is cutting up lengths of wire for tent pegs and an uncut piece of wire is 5m long. If each peg is .144 m is there enough wire to get 25 pegs out of each piece of wire?
(Complete any questions not finished from last week forst)
1. Matt wants to sew a shirt. He has 2 pieces of material. One is 3.2m long and 885cm wide. The other is 2.8m long and 1.2m wide.
a. What are the perimeters of each of the 2 pieces of material?
b. How much wider is the 2nd piece than the first?
c. What is the difference between the perimeters of the 2 pieces?
2. What is the area of a building 17m long by 8m wide?
3. If a farmer's field is 276m2 and the width is 6m how long is it?
4.a. The farmer has sheep, cows and bulls. He wants to keep the ratio of his livestock at 18 : 12 : 2. If he has 48 cows what are the numbers of his other animals?
b. If he has 5 bulls what are the numbers of the other animals?
5. If he puts 6 bulls in a paddock that is 900m2. How many would he put in a paddock that was 2.1km2
6. Is 2/6 of a 420m2 paddock bigger or smaller than 3/7 of 350m2 paddock?
(Complete the Egyptian tomb exercise)
3. Work out what the length of these oblongs are from the perimeter and width
a) Perimeter 282m 61m wide b) Perimeter 864m 199m wide
c) Perimeter 416m 98m wide d) Perimeter 1644m 251 wide
4. A farmer is subdividing is land selling off some sections. Work out the size of the sections he is selling.
a) He is selling off 2/3 of a 936m2 section. b) 2/5 of a 745m2 section.
c) 2/6 of a 1272m2 section d) 3/4 of a 2616m2 section
FInd the perimeter and area of these sports fields and pool.
1. A tennis court is 11m wide and 24m long. What is the perimeter? What is the area? If the strips on either side of the court (which add extra width for the doubles court) are 1m wide, what are the perimeters of each of the different sections? (1, 2, 3, 4, 5)
2. This football pitch is 64m wide and 100m long. What is the perimeter and area of the pitch?
3a. This swimming pool is 12.8 m long and 18.5m wide. Estimate first then work out the perimeter.
b. This swimming pool is 14m long and 20m wide. Estimate first then work out the perimeter and area.
4. This pitch shows the measurements in both metres and yards. The length of the total pitch is 90.12m and the width is 45.9m. The penalty area box is 40.3m across and 16.5m deep. Estimate first then work out the perimeter of the whole pitch and the perimeter of a penalty box.
5. Work out the areas and perimeters of the rooms in the tomb. What is the total area of all the rooms together.