154/10 = 154 ÷10 = 15.4
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To write 154 in scientific notation, move the decimal point to create a number between 1 and 10. In this case, we can express 154 as 1.54 x 10².
Expressed as a decimal, 10/20 is equal to 0.5.
0.5
0.60
2/10 = 0.2