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Decimals — Chapter Test

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Q1
Which is the odd one out (three are equal to ½)?
0.05 is 5 hundredths, not a half.
Q2
What is 0.1 × 10?
Move the point one place right: 1.
Q3
Which is the greatest decimal?
0.99 is the greatest.
Q4
Write ⅘ as a decimal.
⅘ = 8/10 = 0.8.
Q5
Write 0.25 as a fraction in simplest form.
0.25 = 25/100 = ¼.
Q6
What is 2.5 + 3.75?
2.50 + 3.75 = 6.25.
Q7
What is 6.4 − 2.85?
6.40 − 2.85 = 3.55.
Q8
What is 1.5 × 4?
15 × 4 = 60, with one decimal place: 6.0.
Q9
What is 7.2 ÷ 8?
7.2 ÷ 8 = 0.9.
Q10
What is 3.45 × 10?
Move the point one place right: 34.5.
Q11
A pen costs ₹12.50. What do 4 pens cost?
12.50 × 4 = ₹50.
Q12
A bag has 2.5 kg of rice and 1.75 kg is added. How much rice now?
2.5 + 1.75 = 4.25 kg.
Q13
What is 5 − 1.35 − 1.65?
1.35 + 1.65 = 3.00, and 5 − 3 = 2.0.
Q14
What is 0.2 × 0.3?
2 × 3 = 6, with two decimal places: 0.06.
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