Problem Solving.

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Presentation transcript:

Problem Solving

Steps in solving problems Read the whole problem CAREFULLY! Write down or underline the KEY WORDS Decide the CALCULATION you need to do ESTIMATE your answer Write down the SUM CHECK YOUR ANSWER MAKES SENSE

Question 1 12500 people visit the museum this year. This is 2568 more than last year. How many people visited the museum last year? Key Words Calculation Estimate Sum Makes Sense?

Question 2 There are 35 rows of chairs. There are 28 chairs in each row. How many chairs are there altogether? How many rows of chairs do 420 people need? Key Words Calculation Estimate Sum Makes Sense?

Question 3 A school has 486 pupils and 15 classes. What is the average class size? Key Words Calculation Estimate Sum Makes Sense?

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

Question 5 I am saving up for a CD that costs £12.99. I get £2 pocket money each week. If I save my pocket money each week, how long will it take me to save up for my CD? Key Words Calculation Estimate Sum Makes Sense?

Question 6 One tenth of a crowd at a cricket match are from our school. There are 600 people at the cricket match. How many people are not from our school? Key Words Calculation Estimate Sum Makes Sense?

Question 7 Mum takes me shopping. She buys me a jumper for £12.45, a pair of trousers for £24.50 and some swimming shorts for £7.36. She paid with three £20 notes. How much change did she get? Key Words Calculation Estimate Sum Makes Sense?

Question 8 Birthday stickers come in sheets of 9. The headteacher needs one birthday sticker for every child in the school. There are 112 children in the school. How many sheets of stickers does the head need to buy? Key Words Calculation Estimate Sum Makes Sense?

Question 9 I think of a number, add 4 then multiply by 3. My answer is 36. What is my number? Key Words Calculation Estimate Sum Makes Sense?

Question 10 I want to buy some new trainers. In the sports shop there is a sale with 25% off the marked price. The trainers I like cost £42. How much will they be in the sale? Key Words Calculation Estimate Sum Makes Sense?