1000 + 400
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1400
140
17 tens written in expanded form is 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10 + 10, which simplifies to 170. In expanded form, each digit is represented by its place value, with the tens digit multiplied by 10.
In expanded form it is 20+5.The expanded for is a nice way to break up a number to show how much each digit represents. In the example above it shows we have 2 tens and 5 ones.
The expanded form of 3.4 is 3 + 0.4. In decimal notation, each digit's place value is a power of 10. The 3 is in the tens place, representing 3 * 10, and the 0.4 is in the tenths place, representing 4 * 0.1. Therefore, the expanded form is 3 * 10 + 4 * 0.1.