Question

Order these decimals from smallest to largest. 10.05 10.51 1.55

A. A. 1.55, 10.05, 10.51
B. 10.05, 10.51, 1.55
C. 10.51, 10.05, 1.55

Answer 1

The correct order from smallest to largest is option A 1.55, 10.05, 10.51. The decimals are ordered by first comparing the whole numbers followed by the decimal places.

Step-by-step explanation:

To order the decimals from smallest to largest, we look at the whole number part first and then the decimal part. Since 1.55 has a whole number part of 1 and 10.05 and 10.51 both have 10, 1.55 is the smallest. Now, we compare 10.05 and 10.51. Since the tenths place is the same but the hundredths place is different (0 in 10.05, is less than 1 in 10.51), 10.05 is smaller than 10.51. Therefore, the correct order from smallest to largest is 1.55, 10.05, 10.51.