Multiplication

I am learning to use Multiplication strategies in level 3.

1.    When Jasmine makes lemonade she uses 6 lemons for every litre of water. How many lemons does she need for

i)     2 litres of water?   12 -  6x2=12 - 6 doubled = 12

ii)    3 litres of water?   18 - 6x3=18 - 6 tripled is 18

iii)   10 litres of water?  60 - 6x10=60

2.   Devinda is doing some baking. When he uses his mum's recipe he can make 8 muffins. When he doubles the recipe he gets 16 muffins. How many lots of the recipe does he need to make

i)     24 muffins?     24x8=? - 10x8=80 - 10x8=80 - 80+80= 160. 8x4= 32 +160= 192

ii)    32 muffins?     32x8=? - 10x8=80 - 80 tripled is 220. 8x2=16+220= 236

iii)   56 muffins?      8x56=? - 8x10=80 - doubled 5 times = 80 doubled is 160. 160 doubled is 320 + 80 = 400. 8x6= 48 400+48=448

 

Fractions

I am able to work out Fraction problems in level 3.

A farmer is selling some of his animals.

1.  The farmer sells ¼ of his 72 cows.  Show how to work out how many cows he Sell.

1/4 of 72.

72 divided by 4= 18

18 x 1 = 18

4 x 18 = ?

2 x 18 = ?

2 x 10 = 20

2 x 8 = 16

20 +16 = 36

36 doubled = 72

4 x 18 = ?

2 x 18 = ?

2 x 10 = 20

2 x 8 = 16

20 +16 = 36

1/2 of 36 is 18

36 doubled = 72 = 144

2. He sells ⅓ of his 45 pigs.  Show how to work out how many pigs he sells.

1/3 of 45

45 divided by 3 = 15
15 x 1 = 15

3.   He sells ⅙ of his 84 sheep.  Show how to work out how many sheep he sells.

1/6 of 84

84 divided by 6 = 14
14 x 1 = 14

Addition and Subtraction

I am able to work out addition and subtraction strategies in level 3.

1.  Maraea is saving to buy a cat.  In 3 weeks she has saved $9, $56 and $72.

Show how to work out how much she has saved altogether.

$72+$56+$9=?

$72+$8=$80.

$56+$1=57.

$80+$50=$130+7=137

2.  Tom saves his money each month to buy a dog.  In 4 months he has saved $36, $78, $203, and $123.  Show how to work out how much he has saved altogether.

$203+ $123+ $78+36=? -

$200+$120=$320

$80+$40=$120

$120+$320=440

3.   Te Ao is saving to buy a horse.  So far she has saved $17, $160, $72, and $148.  Show how to work out how much she has saved altogether.

$160+$148+$72+$17=? -

70+20=90-5=85.

150+160= 310+85=395

4.  Petelo has $ 147 as a present.  He spent $78 at the shop.  How much has he got left?

147-78=?

150-80=70-5=65