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 20cm perimeter.
Graph your results.
1. Teri bought 95 cards this week and 137 last week. How many has she now got altogether?
2. She gave 77 to Sione. How many does she have left?
3. 54 birds were sitting on the beach, 37 flew away. How many were left?
4. The school sold 197 sausages at the sausage sizzle before 12 o'clock and135 after 12. How many did they sell altogether?
5. There are 83 students who go to Te Hana school. If 46 of them go to school by car and the rest walk, how many students walk?
6. The farmer planted 6 rows of trees. There were 5 trees in each row. How many trees did he plant?
7. Shari had to share a packet of 18 biscuits between herself and 6 friends. How many biscuits did they get?
8. There are 25 animals in the animal shelter. If 2/5 of the animals are cats how many is that?
1. Teri bought 78 cards this week and 126 last week. How many has she now got altogether?
2. She gave 48 to Sione. How many does she have left?
3. 72 birds were sitting on the beach, 38 flew away. How many were left?
4. The school sold 198 sausages at the sausage sizzle before 12 o'clock and 74 after 12. How many did they sell altogether?
5. There are 62 students who go to Te Hana school. If 37 of them go to school by car and the rest walk, how many students walk?
6. The farmer planted 5 rows of trees. There were 8 trees in each row. How many trees did he plant?
7. Shari had to share a packet of 24 biscuits between herself and 3 friends. How many biscuits did they get?
8. There are 20 animals in the animal shelter. If 3/4 of the animals are cats how many is that?
1. There are 58 boys on camp and 44 girls. How many children are there altogether?
2. How many more boys than girls are there?
3. If Tom has 78 marbles and Tame gives him 15 more how many has he now got?
4. If Tui had 92 and lost 36 to Rick how many would she have left?
5. Stan had 20 cards but lost 1/4 of them. Niwa had 24 but 1/6. Who ends up with the most cards?
6. Lisa has a packet of biscuits. There are 24 biscuit in the packet and she has to share them out between 6 people. How many should she give each person?
7. Semi biked 38 km on Monday and 47 on Tuesday. How far did he bike altogether?
8. By the end of the week he had biked 241 km. If he only biked 34 km on Friday what was the total of what he had biked on the other days?
Week 4
Draw and find the perimeter and area of rectangles of these dimensions.
1. A rectangle 8cm long and 3cm wide. 2. A rectangle 6cm wide and 10cm long
3. A rectangle 5cm wide by 12cm wide 4. A rectangle 8cm long and 4cm wide.
5. A farmer has a field 72m long and 27m wide. What is the perimeter?
6. If he sold off a strip at the end of it which was 27m wide by 2m what would the perimeter then be?
7. The original piece of land was 266m2. What was the area after he sold off the strip?
8. A field 162m2 is divided into 2 pieces, one piece is 49m2. What is the size of the other piece?
Week 3
Week 2
Copy these shapes into your book. Work out the lengths of each of the sides then work out the perimeter of each shape and the area.