Advanced Mathematics Primary 4 Decimals

Four students took part in a Science quiz competition. Their scores were: Ahmad 3.08, Siti 3.80, Priya 3.09 and Ravi 3.008. Arrange the students in order of their scores, starting with the lowest score.

A Ravi, Ahmad, Priya, Siti
B Ahmad, Ravi, Priya, Siti
C Ravi, Priya, Ahmad, Siti
D Ahmad, Priya, Ravi, Siti
Show Worked Solution

Worked Solution

Step 1: Rewrite all scores with the same number of decimal places. Ahmad: 3.080 Siti: 3.800 Priya: 3.090 Ravi: 3.008 Step 2: Compare the tenths digit first (all have 0 in tenths except Siti who has 8). Siti (3.800) is the largest. Step 3: Among Ahmad (3.080), Priya (3.090) and Ravi (3.008), compare hundredths digits. Ravi: 0 in hundredths Ahmad: 8 in hundredths Priya: 9 in hundredths So Ravi < Ahmad < Priya. Step 4: Ascending order: Ravi (3.008) < Ahmad (3.080) < Priya (3.090) < Siti (3.800). Answer: Ravi, Ahmad, Priya, Siti.

Correct answer: Ravi, Ahmad, Priya, Siti

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