My Maths Presentation

Serenity EA/AA Term 4 Week 4 Problem Solving

1. Sam was planting fruit trees in his garden. He had 12 trees. How many did he put in each ¼ of the garden?

= 3 because 3 times 4 = 1

2. There were 63 cars in the carpark then 8 had to leave. How many were left?

63 - 8 = 55 because   

63 - 3 = 60 60 - 5 = 55

3.  Tara has cooked up 25 roast potatoes. How many does she put on each of the 5 plates?

= 5 because 5 times 5 = 25  

25 divided by 5 = 5

4. There is a boxing match tonight. Boxer A is more experienced than Boxer B. Bower A has had 469 matches whereas Boxer B has only had 243. How many more matches has Boxer A had than Boxer B?

243 + __ = 469     243 + 57 = 300 + 169 = 469    57 + 169 = 226

226+ 243 = 469

5. At Rina’s school a school hat cost $7. Yesterday the school office had $84 of school hat sales. How many hats did they sell?

84 divided by 7 = 12

which means 7 times 12 = 84

they had sold 12

6. The red soccer team has scored 56 goals over the season so far. The is 7 times more than what the blue has scored. How many goals has the blue team scored in the season so far?

7 times 56 = 380    7 times 50 = 350    

7 times 6 = 30   30 + 350 = 380

7. There are  7 boxes. Each box has 24 tennis balls in it. How many tennis balls are there altogether?

518 because you  24 times divided by 7 =

                                             

8. There are 32 animals at the vet. five-eighths of them are cats. How many is this?

⅝ of 32  8 times 4 = 32 so you put 4 in each of 8 boxes which adds up to 32

Serenity EA/AA Term 4 Week 5 Problem Solving

1.  Tessa has bought 40 mini chocolate bars to put in goodie bags at her party. She has 8 goodie bags. How many does she need to put in each?

= 5 because 5 times 8 = 40 and she puts

5 mini chocolate bars in each goodie bag

2. John has a pizza he has cut into 16 pieces? He eats some then leaves ¾ of the pizza for the rest of the family How many slices did he eat and how many are left for the family?

= 4,  4 times 4 = 16

so john has eaten 4 pizza’s and left 4 more

3. Trevor has to drive 422 km’s. He looks at his odometer and sees he has gone 289 kms. How much further has he got to go?

422 - ? = 289       289 - ? = 422     

289 + 1 = 290    290 + 10 = 300   300 +122 = 422

122 + 10 + 1 = 133

4. The shop is selling sandals for $9 a pair.  They have sold $486 worth of jandals so far. How many pairs have they sold?

= 54 because 9 times 50 = 450

450 + 9 = 540  

5. Sam was giving away some of his marbles. He has 96 altogether. He said to his friend Ben, “You can choose to have  ¼  of them all or ⅔   of ½ of them.” Which should Ben choose?

⅔ because it equals up to 64 which is bigger than ½ of 96 and ¼ of 96

6. The A Softball team has scored 72 goals over the season so far. The is 6 times more than what the B Softball team has scored. How many goals has the B team scored in the season so far?

6 times 12 = 72   the answer is 12

7. 7 of the class are not going on camp. The ¾ of the class are. How many are in the class altogether

= 21 because ¾ of 28 = 21,  you put 7 in each box which equals up to 21  

8. There are  8 boxes. Each box has 25 apples in it. How many apples are there altogether?

200 altogether because 8 times 20 = 160   8 times 5 = 40 160 + 40  = 200

 

My math strategies, Working out

 Mineus. There were 225 people at the movies than 8 had to leave. How many were left?

225 - 8 = 217    225 - 5 = 220   220 - 3 = 217     

                                                                                                                                     

Fraction. John has a pizza he has cut into 16 pieces? He eats some then leaves ¾ of the pizza for the rest of the family How many slices did he eat and how many are left for the family?

= 4,  4 times 4 = 16 so john has eaten 4 pizza’s and left 4 more

Multiplication.  Tessa has bought 40 mini chocolate bars to put in goodie bags at her party. She has 8 goodie bags. How many does she need to put in each?

= 5 because 5 times 8 = 40 and she puts 5 mini chocolate bars in each goodie bag

Addition. Trevor has to drive 422 km’s. He looks at his odometer and sees he has gone 289 kms. How much further has he got to go?

422 - ? = 289       289 - ? = 422     

289 + 1 = 290    290 + 10 = 300   300 +122 = 422

122 + 10 + 1 = 133