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Problem Solving

TERM 4, WEEK 7

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Problem: A

During the summer months John drinks 34 cups of water a day. During the winter months John drinks 17 cups of water a day. How much more water a day does John drink in summer than winter.

During the summer months John drinks 23.17 cups of water a day. During the winter months John drinks 21.85 litres of water a day. How much more water a day does John drink in summer than winter.

During the summer months John drinks 1.6 litres of water a day. During the winter months John drinks 0.755 litres of water a day. How much more water a day does John drink in summer than winter.

S7

success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem

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Problem: B

There are 48 pieces of fruit in the bucket. One-quarter of them are bananas. How many bananas are in the bucket?

There are 48 pieces of fruit in the bucket. Three-eighths of them are bananas. How many bananas are in the bucket?

There are 78 pieces of fruit in the bucket. Two-thirteenths of them are bananas. How many bananas are in the bucket?

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success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem

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Problem: C

John has 7 pencil cases filled with pencils. Each pencil case has 33 pencils. How many pencils are there altogether?

John has 13 pencil cases filled with pencils. Each pencil case has 43 pencils. How many pencils are there altogether?

John has 17 pencil cases filled with pencils. Each pencil case has 63 pencils. How many pencils are there altogether?

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success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem

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Extra for experts

Only go on if you have confidently tried number 3 of the previous slides.

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Problem: D

There are 12 eggs in a dozen. Jess needs 204 eggs. How many dozen eggs does Jess need?

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success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem

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Problem: E

To bake 8 cakes it takes 6 cups of sugar. How many cups of sugar would it take to make 20 cakes

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success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem

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Problem: F

Each batch of muffins takes 0.38 litres of milk to make. You have 9.6 litres of milk. Is that enough milk to make 25 batches of muffins

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success criteria

1 - identify what operation to use

2 - What is the equation you’re trying to working out

3 - Show how you solved the problem