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PLACE VALUE to 100 Photographs – 75

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Numbers are all around us. This Number 75 is from a house in Bronte NSW. It is large, bold and beautiful. Imagine all the ways you can use this for a mental warm-up with Stage 2 or 3 students. You can count by 5s, 25s, 50s and 75s. You can discuss ways to add and subtract other 2-digit numbers to this mentally. You can list 75 things that start with “s” or “f”. You can put an alarm clock on for 75 seconds or 75 minutes and feel the time passing. You can look at a supermarket catalogue and find all the things you can buy for 75 cents (probably not so much these days!!!). You can estimate then measure things that are about 75 cm long. You can look at where 75 mL of water comes to in a variety of containers. You can ask 75 students at the end of recess to demonstrate different groups – e.g. on a signal they form into groups of 5 and count how many groups and how many leftovers to demonstrate 75 ÷ 5 = 17. Then try groups of 9? 75 ÷ 9 = 8 with 3 left. 12? 75 ÷ 12 = 6 with 3 remaining. 20? 75 ÷ 20 = 3 with 15 extras. What else might you try?