Word Problems NAME Assessment questions 1 Elisa has
Word Problems
NAME: __________ Assessment questions 1. Elisa has 95 oranges. Amelie has 142. How many more oranges does Amelie have? 2. Liam has 52 fish. Zac has 30. How many fewer does Zac have? 3. There were 2, 114 visitors to a museum on Saturday. 650 more people visited the museum on Saturday than on Sunday. How many people visited the museum altogether. Clue: there are 2 steps to this problem.
Fewer
Decide which calculation Can you explain why?
Problems with the word fewer Remember fewer means less. Let’s use cubes to look at what is happening. Igor has 12 sweets. Maye has 5 fewer. How many does Maye have? In other words: Igor has 12 sweets. Maye has 5 LESS. How many does Maye have?
Decide which calculation Can you explain why?
Let’s use cubes to look at what is happening. Emily has 7 pet spiders. Ben has 12. How many more does Ben have? With cubes you can see we are counting up to find the difference.
Bigger numbers
Problems with the word fewer Mr. Hill’s sweet factory makes 1, 866 sweets on Saturday. On Sunday it makes 533 fewer. How many does it produce on Sunday? Use rounding to the nearest 100 to approximate your answer. What would the number sentence be? Does it sound right? Now work it out!
Problems with the words ‘how many more. . ’ Rory’s sweet shop has 1, 235 packets. Toby’s sweet shop has 2, 432 packets of sweets on the shelves. How many more packets does Toby’s shop have? Use rounding to approximate your answer. What would the number sentence be? Does it sound right? Now work it out! Watch out for exchanging!
Word Problems Day 2 – Mixed problems
Think • What is wrong with these questions? Explain. 1) 3, 425 sweets – 5, 552 sweets. 2) Molly has 552 two rubbers. She subtracts 605.
Vocab • What words have we been learning that mean SUBTRACT or TAKE AWAY? • D_______ • H____ m DECREASE DIFFERENCE HOW MANY MORE
Vocab • Today we will look at mixed problems with different vocabulary. • Look at the word problems and decide with a partner: 1) What the calculation is. 2) What the number sentence is. Give the children the mixed word problems in the folder.
Vocab • A sweet company makes 2, 934 sweets on Monday. On Tuesday it makes 3, 312. How many MORE sweets does the company make on Tuesday. • Is this add or subtract? How do you know?
Vocab • A car company makes 1, 934 cars on Monday. On Tuesday it makes 3, 312. How many cars does the company make on those two days? • Is this add or subtract? How do you know?
Vocab • Footballs cost £ 8. 49. • Rugby balls costs £ 12. 58. • How much MORE do rugby balls cost? What is the number sentence? Teacher to model how to set out calculation using column method
Vocab • A car company makes 1, 934 cars on Monday. On Tuesday it makes 3, 312. How many cars does the company make on those two days? • Is this add or subtract? How do you know?
Word Problems Day 3 – 2 step word problems
Let’s look at two step problems with SIMPLE numbers • A sweet shop sells 6 packs of sweets on Saturday. On Sunday they sell 4 more packets than on Saturday. How many are sold altogether? • Is the answer? A) 10 B) 16 C) None of these WHY? Explain your answers.
Let’s look at two step problems with SIMPLE numbers • A biscuit factory produces 20 chocolate biscuits on Saturday. On Sunday they make 8 more than on Saturday. How many are produced altogether? • Is the answer? A) 48 B) 28 C) None of these WHY? Explain your answers.
Vocab • A REALLLY BAD car company makes 12 cars on Monday. On Tuesday it makes 5 more than on Monday. • How many cars does the company make ALTOGETHER? • Discuss with a partner what the two steps would be? • Step 1 • Step 2
Problem • A car company makes 1, 934 cars on Monday. On Tuesday it makes 452 more than on Monday. • How many cars does the company make ALTOGETHER? • Discuss with a partner what the two steps would be? • Step 1 • Step 2
CAREFUL • Kauser’s Biscuit company makes 2, 342 biscuits on Thursday. On Friday they make 3, 425. How many more do they make on Friday?
Word Problems Day 4 – More 2 step word problems
Problem • Rosa is trying to complete a sticker book. It needs 20 stickers overall. • She has 8 in the book and a further 6 ready to stick in. • How many more stickers will she need? • Is the answer? A) 28 B) 6 C) None of these WHY? Explain your answers.
Problem • Maye is trying to complete a sticker book. It needs 500 stickers overall. • She has 422 in the book and a further 14 ready to stick in. • How many more stickers will she need? • STEP 1: • STEP 2:
Problem • There are 12, 500 people at a football match. • There are 8, 200 adults. • The rest are children. • How many more adults than children are there?
700
OLD
Fewer
Decide which calculation you have to do for each question and WHY • Ask yourself: will the answer be bigger or smaller? 1. On Monday Liam’s tennis ball factory makes 12 balls. On Tuesday it makes 5 fewer. How many does it make on Tuesday? 2. Sam has 13 pairs of socks. Phoebe has 7 pairs of socks. How many more socks does Sam have than Phoebe? 3. Tilly’s Sweet shop has 15 packets of sweets on the shelves. She sells 8 of them. How many packets are left? 4. Tom has 8 peanuts. Bertie has 22. What is the difference between the number of peanuts they have?
Remember fewer means less. Let’s use cubes to look at what is happening. Ted has 9 sweets. Molly has 5 fewer. How many does Molly have? In other words: Ted has 9 sweets. Molly has 5 LESS. How many does Molly have?
Problems with the word fewer Remember fewer means less. Let’s use cubes to look at what is happening. Ted has 20 sweets. Molly has 5 fewer. How many does Molly have? In other words: Ted has 20 sweets. Molly has 5 LESS. How many does Molly have?
Problems with the word fewer Remember fewer means less. Careful with this one: don’t forget your dots to show in case you need to exchange Mr. Hill’s sweet factory makes 1, 866 sweets on Saturday. On Sunday it makes 533 fewer. How many does it produce on Sunday? In other words: Mr. Hill’s sweet factory makes 1, 866 sweets on Saturday. On Sunday it makes 533 less. How many does it produce on Sunday? What would the number sentence be? What method would you use to work it out?
Problems with the word fewer Remember fewer means less. Careful with this one: don’t forget your dots to show where to exchange Mr. Hill’s cake factory bakes 2, 454 muffins on Saturday. On Sunday it makes 1, 462 fewer. How many does it produce on Sunday? What would the number sentence be? What method would you use to work it out?
More examples of fewer to work through
Problems with the word fewer Ted’s sweet shop has 438 packets of sweets on the shelves. Tom’s sweet shop has only 234 packets of sweets. How many fewer packets does Tom’s shop have? Write the number sentences. Which method is best to work it out and why? Mental or column?
Tune in • A large shop has 378 customers in the morning and 234 during the afternoon. How many more customers does the shop have in the afternoon? What would the number sentence be? What method would you use to work it out?
Problems with the word fewer Remember fewer means less. Careful with this one: you will need to exchange Mr. Hill’s cake factory bakes 2, 454 muffins on Saturday. On Sunday it makes 1, 462 fewer. How many does it produce on Sunday? What would the number sentence be? What method would you use to work it out?
How many more…
Let’s use cubes to look at what is happening. Emily has 7 pet spiders. Ben has 12. How many more does Ben have? With cubes you can see we are counting up to find the difference.
Let’s try another • Use cubes if you need to understand what is happening. Tommy has 8 pairs of socks. Mrs Salter has 17. How many more does Mrs Salter have? How did you work it out?
Tune in Choose: • A shop has 78 customers in the morning and 34 during the afternoon. How many more customers does the shop have in the afternoon? • Mental method? Written method? • A large shop has 378 customers in the morning and 234 during the afternoon. How many more customers does the shop have in the afternoon?
Tune in CAREFUL – now there is exchanging: • A large shop has 373 customers in the morning and 239 during the afternoon. How many more customers does the shop have in the afternoon?
Day 4
How many more…
Let’s use cubes to look at what is happening. Emily has 68 worms. Devan has 99. How many more does Deavan have? With cubes you can see we are counting up to find the difference.
Let’s try another • Use cubes if you need to understand what is happening. Tommy has 8 pairs of socks. Mrs Salter has 17. How many more does Mrs Salter have? How did you work it out?
Tune in Choose: • A shop has 78 customers in the morning and 34 during the afternoon. How many more customers does the shop have in the afternoon? • A large shop has 378 customers in the morning and 234 during the afternoon. How many more customers does the shop have in the afternoon?
Tune in CAREFUL – now there is exchanging: • A large shop has 373 customers in the morning and 239 during the afternoon. How many more customers does the shop have in the afternoon?
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