John's meal by Martin Bagaric https://padlet.com/martinbagaric1994mb/ye0jzat3ngkpo4rb What food John might have bought for his meal? en-us 2023-04-03 12:37:14 UTC 2023-04-03 12:48:14 UTC hello@padlet.com Canteen menu martinbagaric1994mb https://padlet.com/martinbagaric1994mb/ye0jzat3ngkpo4rb/wish/2542161875 Stage/Class: Stage 3
Objectives:
MAO- WM-01 Develops understanding and fluency in mathematics through exploring and connecting mathematical concepts, choosing and applying mathematical techniques to solve problems, and communicating their thinking and reasoning coherently and clearly

MA3-AR-01 Selects and applies appropriate strategies to solve addition and subtraction problems


 | Canteen Product | Price
 | Ham Sandwich | $3.20
 | Bag of Chips | $1.20
 | Ice block | 25c
 | Instant Noodle | $2.10
 | Orange Juice | $1.45
 | Fruit | $1.50
 | Cookie | 75c

The table above listed all products sold with a canteen and their marked prices. John spent exactly $7 during recess. What might he have bought? Goods marked with different prices and play money can be used to work out the answer.

]]> 2023-04-03 12:40:39 UTC https://padlet.com/martinbagaric1994mb/ye0jzat3ngkpo4rb/wish/2542161875 Answer martinbagaric1994mb https://padlet.com/martinbagaric1994mb/ye0jzat3ngkpo4rb/wish/2542170701 The way I solved this problem is to work things backwards. It means that if John have bought a series of products and spent exactly $7, I will need to pick a product and use the marked price within the table to subtract it to $7. I will pick a ham sandwich and it is marked $3.20. Therefore $7 - $3.20 = $3.80. Then he picked an orange and that means he still has $3.80 - $1.45 = $2.35. Then he pick a fruit after. That mean he has $2.35 - $1.50 = 75c left to spend. Therefore, he eight bought a cookie or 3 ice block. Therefore, my answer is a ham sandwich, an orange juice, a fruit and a cookie. In order to show it using materials, students can have $7 worth of play money and exchange the money with the play bank each time the picked up a product to see how much they spent and left to spend. 

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