Unit 7: Decimals

Q1. Which is larger, 0.72 or 0.7?

0.72 0.7 They're equal Can't tell

Solution: 0.7 is the same as 0.70, and 72 hundredths is more than 70 hundredths

Q2. 5.6 + 2.35 = ?

7.85 7.95 8.05 7.75

Q3. 9.2 u2212 4.65 = ?

4.65 4.45 4.55 5.55

Q4. What is 0.6 written as a fraction, reduced?

6/10 2/3 1/6 3/5

Solution: 0.6 = 6/10, which reduces to 3/5.

Q5. Round 3.256 to the nearest tenth.

3.3 3.2 3.25 3.26

Solution: The hundredths digit is 5, so round the tenths digit up: 3.2 u2192 3.3.

Q6. Which is smallest: 0.09, 0.9, or 0.19

0.9 0.09 0.19 They're equal

Solution: 0.09 is 9 hundredths, smaller than both 0.9 and 0.19

Q7. 12.4 + 3.75 = ?a) 16.05 b) 15.15 c) 16.15 d) 16.25 u2192 Correct: c

16.05 15.15 16.15 16.25

Q8. Round 0.125 to the nearest hundredth.

0.12 0.1 0.2 0.13

Solution: The thousandths digit is 5, so round the hundredths digit up: 0.12 u2192 0.1

Q9. $15.60 u2212 $8.75 = ?

$6.85 $6.95 $7.15 $6.75

Q10. Write 7/10 as a decimal.

0.07 0.7 7.0 0.71

Q11. 0.45 + 0.6 = ? a) 0.51 b) 1.5 c) 1.05 d) 0.95

0.51 1.5 1.05 0.95

Q12. Which decimal equals 3/4?

0.34 0.43 0.7 0.75

Solution: 3 u00f7 4 = 0.75

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