Ratio

WALT: apply a range of strategies to solve ratio problems

A range of maths problems

WALT:  apply our maths knowledge to a range of concepts

Transformation 2

For this we had to translate the square into different places and then I also had to reflect and enlarge the shape by 2 at one point.
WALT:  transform shapes using reflection, rotation and translation

Perfect Perimeter

 In this presentation there is perimeter, Area and volume  that I had to figure out. The shapes I had to find the area and perimeter was from a right angled triangle a square and a rectangle and I had to find the volume from a cuboid.
WALT:  calculate  area and perimeter 

Level 5 Extension

Level 5 Extension!

Two different shops advertise oranges for sale.

Shop A =$3.20 for 2kg

. Shop B= $4.50 for 3kg

Which shop is giving the best buy for 7kg of oranges? Shop B

Two building suppliers advertise soil for sale.

Building Supplier A offers soil at $130 per 2 cubic metres.

Building Supplier B offers topsoil at $25 per 1⁄2 cubic metre.

Which supplier offers the best buy for 3 cubic metres of topsoil? Building Supplier B

INVESTIGATION Use any of the the symbols (, ), +, -, ×, or ÷ to make the expression below into the largest possible number. Each symbol can only be used once.

9 7 16 0.5

APPLICATION

The above diagram is of a section of a bridge. A, B, C, D, E, F, G are vertical supports.

The vertical support A = 10 metres long.

ALSO:  length A = G, length B = F length C = E.

The length of B is 3/ 5 of A.- 6 m

The length of C is ⅘ of B- 4.8 m

The length of D is 9/10 of C - 0.48m

Calculate the total length of the supports. 12.28

FRACTIONS TO DECIMALS Change these fractions to decimals.

1/10  - 0.1                ⅜ - 0.375

3/10 - 0.3                   3/1000 - 0.003

⅖  - 0.4                             21/50 - 0.42

17/10 - 1.7                          8/20 - 0.4

⅛ - 0.125                                1 ¾ - 1.75

DECIMALS TO FRACTIONS Change these decimals to fractions.

0.4 - 4/10          0.0002 - 2/10000

0.314 - 314/100   

0.5 - 5/10       

0.175 - 175/1000

0.28 - 28/100

QUICK QUESTIONS Use any strategy. Don’t use a calculator.

1. 1.41 + 2.53 = 3.94

2. 25.4 - 24.1 = 1.3

3. 25 × 7 = 175

4. 2.5 × 7 =17.5

5. 24 ÷ 3 = 8

6. 2.4 ÷ 3 = 0.8

7. Round 3.156 to 1 DP. 3.2

8. -2 + 4 = 2

9. -2 - -3 =1

10. 3 - -4 + -5 = 2

11. 2.15 + 4.62 = 6.77

12. 7.53 - 7.39 = 0.14

13. 24 × 6 =79.44

14. 2.4 × 6 = 14.4

15. 141 ÷ 3 = 47

16. 14.1 ÷ 3 =4.7

17. Round 5.394 to 1 DP. 5.4

18. -12 + 3 = -9

19. -4 - -6 = 2

20. -8 + -2 - -6 = -4

Swimming Lessons DIMIC

This is my working out


The equation is to find the difference between 14.99 and 15.55.
My working out way is the number line. So you start at the lower number which is 14.99 + what = 15.55.
So I did 14.99 + 0.01 = 15 because it is more easy to add another decimal to a whole number. The next thing I did was 15 + 0.55 = 15.55. Then I am going to add 0.01 + 0.55 = 0.56. But now they have the same time so Jayde has to swim 0.01 to beat Paikea.

Dangerous Decimals

WALT:  Identify the difference between fractions and decimals

Force and Motion

Fractions

WALT:  add and subtract fractions and decimals

The first thing I did was change the denominators that equal the same number. The number was 12 because 4x3=12. So instead of 1/4 + 1/3 is now 3/12 + 4/12 which is more easy to add.

Fabulous Fractions

            Fabulous Fractions

We are learning to identify the relationship between equivalent fractions.

What is 2/6 of 36?    = 12

What is 5/11 of 22 = 10

What is 2/13 of 26? = 4

What is 4/8 the same as? =2/4

What is ⅖ the same as? = 4/10

What is 10/30 the same as? = 5/15

What is 25/50 the same as? = 50/100

Show your working for the remainder of the problems

2/16 + 2/8 =   2/16 + 4/16 = 6/16

2/8 + 2/7 = 15/28

I have 5/20 of a cake left over from the party. I cut the leftover cake into quarters. What fraction is each of these pieces?20/80

⅕ + 2/20 = 15/50

1/7 + ⅚ = 41/42

4/9 + 5/13 = 97/117

8/13 + 9/24 = 103/104

List as many fractions as you can that are smaller than ½ but bigger than 1/3

6/10    7/10  

I have 4 kg of mince. I split it up into 0.5kg bags. How many bags do I have? 8 bags

5 x 0.5 = 2.5

5 ÷ 0.5 = 10

Fresh Fractions

WALT:  add and subtract fractions

Serious Subtraction

WALT:  add and subtract with decimals

Fractions, Decimals, Percentages

Fractions Finale

WALT:  add and subtract fractions with different denominators

Delicious Division

WALT:  add and subtract with decimals

Delicious Division

Delicious Division

We are learning to solve division equations using our knowledge of multiplication.

Multiplication practice:

56 ➗ 8 =7             72 ➗ 9 =8      44 ➗ 11 =4

45 ➗ 9 =5              64 ➗ 8 =6  56 ➗ 7 =8

35 ➗ 5 =7             144 ➗ 12 =12   27 ➗ 3 =9

Justus has 75 chocolates. He would like to share them between 5 friends. How many chocolates will they get each? 75 ÷ 5 =215

Tamati has 48 fidget spinners to share between 12 friends. How many will they receive each? 48 ÷ 12 = 4

Cooking club have made 140 cookies that will be shared between 7 students. How many cookies will each student receive?140 ÷ 7 =20

Amelia has made 144 mini pineapple pies. She is sharing them between 12 friends. How many pies will each friend receive? 144 ÷ 12 =12

Mrs Vaafusuaga has ordered 45 tennis balls. They are in cans of 3 balls. How many cans should there be?45 ÷ 3 = 15

Atareita has 117 lollies. She would like to make 9 lolly leis. How many lollies can you use to make each lei?117 ÷ 9  = 13

WALT:  add and subtract with decimals