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On a number line divided into tenths, which decimal lies between 2 and 3, closest to 3?

Class 6DecimalsDecimals
  • A2.9
  • B2.1
  • C2.5
  • D3.1

Step-by-Step Solution

Between 2 and 3, the value closest to 3 is 2.9 (it is only 0.1 away from 3). 3.1 is outside the interval.
Answer: A) 2.9

Key idea: Comparing decimals

Comparing decimals is just comparing place values left-to-right. To make it easy, give both numbers the **same number of decimal places** by adding zeros on the right (which never changes the value). Compare 1.4 and 1.42: rewrite 1.4 as 1.40. Now compare digit-by-digit — 1.40 vs 1.42 → at the hundredths place, 0 < 2 → 1.4 < 1.42.

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