Ready for some calculations with length? Rulers at the ready...
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Ready to do some calculations with capacity? Ready, steady...
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The mean is the average of a set of numbers. To find the mean, we add up all the numbers and divide them by the number of values in the set. Can you calculate the mean in these problems?
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When adding and subtracting fractions that have the same denominators, you simply calculate with the numerators and ignore the denominators. When calculating with fractions with different denominators, you need to change the fractions so that you can calculate with them. See if you can work out these questions.
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When adding two fractions whose denominators (bottom numbers) are the same, you simply add the two numerators (top numbers) and leave the denominators the same. Can your child work out the fraction additions in this worksheet?
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When adding two fractions whose denominators (bottom numbers) are the same, you simply add the two numerators (top numbers) and leave the denominators the same. Can you work out these fraction additions?
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Venn diagrams are a great tool to help you investigate whether a statement is true or false. Use the blank diagrams below to investigate the given statements. Give at least 10 examples before deciding whether the statements are true or false.
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Penelope Pennywise is a very sensible (and scarily organised!) girl. She’s decided to make sure that she will have enough money each month to spend on her friends’ and family members’ birthdays. Here’s some information (some of it is important, some of it isn’t) about Penelope’s plan, and a list of birthdays throughout the year. Use the tally chart to help you work out how much Penelope will need to spend each month on birthdays. Will she be able to buy presents for everyone on her list?
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If the equivalence is correct, use the “correct” letter in the riddle below; if it is incorrect use the “incorrect” letter.
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Cut out your red circles (these will act as counters). One side is red, the other side is white. How many different ratios can you show with these counters? Now flip the counters to find more ratios. When you’ve finished… How many did you find?
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Proportion shows the amount of something out of a total amount. For instance, if I had 20 stickers and 7 of them were red, the proportion of red stickers would be 7 out of 20, or 7/20. Proportions are fractions!
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Cut out these dominoes cards and see if you can match them up. Be careful, some proportions might be simplified (for example, 2/3 blue could mean 4 blue out of 6 altogether).
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We can find percentages of numbers by using a percentage pod! As you practise using the percentage pod model you’ll get used to finding the percentages in your head and develop a mental method.
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Do you know how to use a percentage pod? Use a percentage pod to calculate theses percentages.
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Before we do a calculation it’s useful to make a quick estimate. This helps because when we complete the calculation we will know if we are right or not based on the closeness to the estimation.Can you estimate the answers to the following? Remember to estimate, don’t do the working out!
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This is a game for 2 to 4 players. The aim of the game is to correctly estimate the correct price of an item. The game host holds all the item cards. Players are assigned an item and take it in turns to guess the price. The person closest to the correct answer ‘wins’ that item and is given the card. The first person with 3 cards wins!
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Can you read and use all kinds of Venn diagrams? Try these more complex diagrams and questions to extend your understanding.
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The labels for these Carroll diagrams have fallen off. Can you put them in the correct places?
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Emily is having a birthday party. To help with buying food, Emily has sorted her guests into a Carroll diagram. Use it to plan for the birthday party below.
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Play this quick calculation game with a partner. Take it in turns to turn over an item card and a percentage card. Work out how much money you are saving on each item by calculating the discount percentage. After three rounds, the person who has saved the most money wins.
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