comparing decimals

Q1 / 0.3 ...... 0.30 < = > Q2 / 0.35 ...... 0.4 < = > Q3 / 56.78 ...... 5.678 < = > Q4 / 45.6 ...... 45.600 < = > Q5 / 3.145 ...... 3.154 < = > Q6 / 6.324 ....... 6 + 0.3 +0.02 + 0.004 < = > Q7 / 9 ones , 3 thousands ....... 9.03 < = > Q8 / 6.007 ........ 7 ones , 6 thousands < = > Q9 of the following is greater than 1.72 ? 1.27 1.720 1.8 Q10 the following are equal except ...... 0.7 0.70 0.007 0.700