steps in solving problems read the whole problem carefully! read the whole problem carefully! write...

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Page 1: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline
Page 2: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Steps in solving problemsSteps in solving problems

Read the whole problem CAREFULLY!Read the whole problem CAREFULLY! Write down or underline the KEY Write down or underline the KEY

WORDSWORDS Decide the CALCULATION you need Decide the CALCULATION you need

to doto do ESTIMATE your answerESTIMATE your answer Write down the SUMWrite down the SUM CHECK YOUR ANSWER MAKES SENSECHECK YOUR ANSWER MAKES SENSE

Page 3: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 1Question 1

12500 people visit the museum this year. 12500 people visit the museum this year. This is 2568 more than last year. How This is 2568 more than last year. How many people visited the museum last many people visited the museum last year?year?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 4: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 2Question 2

There are 35 rows of chairs. There are There are 35 rows of chairs. There are 28 chairs in each row. How many chairs 28 chairs in each row. How many chairs are there altogether? How many rows of are there altogether? How many rows of chairs do 420 people need?chairs do 420 people need?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 5: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 3Question 3

A school has 486 pupils and 15 classes. A school has 486 pupils and 15 classes. What is the average class size?What is the average class size?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 6: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 4Question 4

In every multipack of crisps there are eight In every multipack of crisps there are eight packets of crisps and three of these are packets of crisps and three of these are prawn cocktail flavour. If Mrs. Allsop buys 4 prawn cocktail flavour. If Mrs. Allsop buys 4 multipacks of crisps for the class party, how multipacks of crisps for the class party, how many packets of prawn cocktail crisps will many packets of prawn cocktail crisps will there be? there be?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 7: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 5Question 5

I am saving up for a CD that costs £12.99. I am saving up for a CD that costs £12.99. I get £2 pocket money each week. If I I get £2 pocket money each week. If I save my pocket money each week, how save my pocket money each week, how long will it take me to save up for my CD? long will it take me to save up for my CD?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 8: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 6Question 6

One tenth of a crowd at a cricket match One tenth of a crowd at a cricket match are from our school. There are 600 people are from our school. There are 600 people at the cricket match. How many people at the cricket match. How many people are not from our school? are not from our school?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 9: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 7Question 7

Mum takes me shopping. She buys me a Mum takes me shopping. She buys me a jumper for £12.45, a pair of trousers for jumper for £12.45, a pair of trousers for £24.50 and some swimming shorts for £24.50 and some swimming shorts for £7.36. She paid with three £20 notes. How £7.36. She paid with three £20 notes. How much change did she get? much change did she get?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 10: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 8Question 8

Birthday stickers come in sheets of 9. The Birthday stickers come in sheets of 9. The headteacher needs one birthday sticker headteacher needs one birthday sticker for every child in the school. There are 112 for every child in the school. There are 112 children in the school. How many sheets of children in the school. How many sheets of stickers does the head need to buy? stickers does the head need to buy?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 11: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 9Question 9

I think of a number, add 4 then multiply I think of a number, add 4 then multiply by 3. My answer is 36. What is my by 3. My answer is 36. What is my number? number?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?

Page 12: Steps in solving problems Read the whole problem CAREFULLY! Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Write down or underline

Question 10Question 10

I want to buy some new trainers. In the I want to buy some new trainers. In the sports shop there is a sale with 25% off sports shop there is a sale with 25% off the marked price. The trainers I like cost the marked price. The trainers I like cost £42. How much will they be in the sale? £42. How much will they be in the sale?

Key WordsKey Words

CalculationCalculation

EstimateEstimate

SumSum

Makes Sense?Makes Sense?