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**How many tens and hundreds**

I am learning how many hundreds there are in numbers over 1000. $100 $100 $100 $100 = $1000 $100 $100 $100 $100 $100 $100

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**We know how many $100 notes there are in $1000. There’s ten.**

We can use this to work out how many hundred dollar notes there are in $2000. $2000 is twice as big as $1000 so there must be twice as many $100 notes (twenty $100 notes). Let’s check. $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 $100 See the pattern? How many $100 notes must there be in $4000? $100 $100 $100 $100 $100 $100 $100 $100 That’s right. There are forty $100 notes in $1000 $100 $100 $100 $100 $100 $100 $100 $100 $1000 $1000 $1000 $1000

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**A cricket club wants to buy some more bats. Each bat costs $100**

A cricket club wants to buy some more bats. Each bat costs $100. They have $3542 to spend. How many bats can they buy? Step1: We need to find out how many hundred dollar notes there are in $3542. First lets put $3542 in houses. Thousands Hundreds Tens Ones 3 5 4 2 Step 2: How many $100 notes are there in $3000? 30 Step 3: How many $100 notes are there in the hundreds column? 5 Step 4: We don’t need to worry about the numbers in the ones and tens column because they are less than $100 Step 5: Add up how many hundred dollar notes you found = 35. This is how many bats they can buy.

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**A large business wants to buy some new desks. The desks cost $100**

A large business wants to buy some new desks. The desks cost $100. They have $6304. How many desks can they buy? Try doing this example in your head. Step1: How many hundreds are there in $6000? 60 Step 2: How many $100 notes are there in the hundreds column? 3 Step 3: Do we need to worry about the numbers in the ones and tens column? No, they are less than $100. Step 4: Add up how many hundred dollar notes you found. = 63

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**Now try these questions on your own.**

How many hundreds are there in the numbers below. Click again when you have completed each question and the answer will be displayed. 8307 2496 5384 2175 7041 = 83 = 24 = 53 = 21 = 70 Need some more practise? Try Pg47 of Teacher Tools Addition and Subtraction Book Numeracy resources

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Problems like 37 + … = 79 I am learning to add mentally the ones and tens separately when appropriate. 84 TensOnes.

Problems like 37 + … = 79 I am learning to add mentally the ones and tens separately when appropriate. 84 TensOnes.

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