Order Numbers microlesson
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This lesson is about ordering whole numbers up to 10 million. So firstly, we need to find out if we are ordering numbers from largest to smallest or smallest to largest. In this example, we will order them with the largest first, then we need to check the numbers have the same amount of digits. If they don't, the numbers with more digits are larger. In this example, they all have seven digits. To order the numbers, we first need to look at the digits on the lefthand side column. The number that has the largest digit in this column is the largest number, so it goes first. We then look for the next biggest number using the same method. If two numbers have the same digit in the first column on the left, we look at the digits in the second column from the left. We then go through this process until we have ordered all the numbers.
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Order the following numbers from largest to smallest: 2,781,829; 921,782; 872,192; 994,129
1) 2,781,829; 994,129; 921,782; 872,192;2) 2,781,829; 921,782; 872,192; 994,1293) 2,781,829; 872,192; 921,782; 994,1294) 994,129; 921,782; 872,192; 2,781,829; 
Order the following numbers from smallest to largest: 231,819; 281,192; 2,918; 2,910,182
1) 2,918; 231,819; 281,192; 2,910,1822) 231,819; 281,192; 2,918; 2,910,1823) 231,819; 281,192; 2,910,182; 2,918;4) 231,819; 281,192; 2,910,182; 2,918; 
Order the following numbers from largest to smallest: 4,628,283; 8,345,284; 6,618,234; 9,231,463
1) 9,231,463; 8,345,284; 6,618,234; 4,628,2832) 4,628,283; 8,345,284; 6,618,234; 9,231,4633) 4,628,283; 9,231,463; 8,345,284; 6,618,2344) 4,628,283; 6,618,234; 8,345,284; 9,231,463; 
Order the following numbers from largest to smallest: 7,785,678; 5,845,856; 5,895,934; 589,934
1) 7,785,678; 5,895,934; 5,845,856; 589,9342) 7,785,678; 5,845,856; 5,895,934; 589,9343) 7,785,678; 589,934; 5,845,856; 5,895,9344) 589,934; 5,845,856; 5,895,934; 7,785,678; 
Order the following numbers from smallest to largest: 892,619; 4,719,271; 4,182,192; 1,189,281
1) 892,619; 1,189,281; 4,182,192; 4,719,2712) 892,619; 4,719,271; 4,182,192; 1,189,2813) 1,189,281; 4,182,192; 4,719,271; 892,6194) 4,719,271; 4,182,192; 1,189,281; 892,619 
When ordering numbers we need to...
1) check whether we are ordering them from largest to smallest or smallest to largest.2) always order them from largest to smallest.3) always order them from smallest to largest.4) not worry about whether we are ordering them from smallest to largest or largest to smallest. 
When whole numbers have the same amount of digits, the number with the largest digit in the column on the far left is...
1) is the largest number.2) is the second largest number.3) is sometimes the largest number.4) is the smallest number. 
If whole numbers don't have the same amount of digits, the numbers with more digits are...
1) larger2) smaller3) the same4) sometimes larger, sometimes smaller 
To order numbers, what is the first digit we look at?
1) The digit furthest to the left.2) The digit furthest to the right.3) The digit in the middle of the number.4) The digit in the hundreds column. 
When might we need to look at the digit in the second column from the left.
1) when two numbers have the same amount of digits and the same digit in the first column from the left.2) when one number has more digits than another.3) when two numbers have the same amount of digits and the a different digit in the first column from the left.4) we never need to look in this column
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Natalie Dixon
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