Evaluate 400-1.2

Math
400-1.2
Subtract using long subtraction.
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Set up the subtraction problem in long subtraction format.
400
1.2
.
Borrow 10 from the digit in the next column to the left. Add the borrowed 10 to 0. Reduce the number that was borrowed from by 1.
-110
400
1.2
.
Subtract 2 from 10.
-110
400
1.2
.8
Borrow 10 from the digit in the next column to the left. Add the borrowed 10 to -1. Reduce the number that was borrowed from by 1.
-1910
400
1.2
.8
Subtract 1 from 9.
-1910
400
1.2
8.8
Borrow 10 from the digit in the next column to the left. Add the borrowed 10 to -1. Reduce the number that was borrowed from by 1.
39910
400
1.2
8.8
Subtract 0 from 9.
39910
400
1.2
98.8
Subtract 0 from 3.
39910
400
1.2
398.8
39910
400
1.2
398.8
The result of 400-1.2 is 398.8.
398.8
Evaluate 400-1.2

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