SAT Math Practice Exam

Answer -A (0.03)² = 0.0009 =0.0009
(0.3) ² = 0.09 =0.0900
0.03 = 0.03 =0.0300
0.3 = 0.3 =0.3000
Out of these (0.03)² = 0.0009 is the least.

Key takeaway: While multiplying decimals, the only tricky part is to put the decimal point .Count and total the number of digits to the right of the decimal points in all of the numbers you are multiplying and place the decimal in that position counting the digits from the right of the number.