Question

name:____ date:____ 1. comparing decimals which of the following comparisons is not true? circle the letter of the correct answer. a 42.300 = 42.3 b 5.020 < 5.20 c 0.149 < 1.490 d 108.308 > 108.4 ava chose a as the correct answer. how did she get that answer?

Explanation:

Step1: Analyze option A

In option A, when comparing 42.300 and 42.3, according to the property of decimals, adding zeros at the end of a decimal number after the last non - zero digit does not change its value. So 42.300 = 42.3, and this comparison is true.

Step2: Analyze option B

For option B, comparing 5.020 and 5.20, starting from the left - most digit, the digit in the tenths place of 5.020 is 0 and the digit in the tenths place of 5.20 is 2. Since 0 < 2, we have 5.020 < 5.20, and this comparison is true.

Step3: Analyze option C

In option C, comparing 0.149 and 1.490, the digit in the units place of 0.149 is 0 and the digit in the units place of 1.490 is 1. Since 0 < 1, we have 0.149 < 1.490, and this comparison is true.

Step4: Analyze option D

For option D, comparing 108.308 and 108.4, starting from the left - most digit until the tenths place, the digit in the tenths place of 108.308 is 3 and the digit in the tenths place of 108.4 is 4. Since 3 < 4, we have 108.308 < 108.4, not 108.308 > 108.4. So this comparison is not true.

Answer:

D