1. **Write the decimals in words:** (a) 0.9 is written as "nine tenths" because the digit 9 is in the tenths place. (b) 0.06 is "six hundredths" since 6 is in the hundredths place. (c) 0.006 is "six thousandths" because 6 is in the thousandths place. (d) 0.87 is "eighty-seven hundredths" (not eight tenths) because 8 is in the tenths and 7 in the hundredths place. (e) 17.62 is "seventeen and sixty-two hundredths" (not eleven and one hundred sixty two thousandths). The whole number is 17, and 62 is in the hundredths place. (f) 9.51 is "nine and fifty-one hundredths" because 51 is in the hundredths place. 2. **Rounding decimals:** - To round to the nearest tenth, look at the hundredths place. - To round to the nearest hundredth, look at the thousandths place. 3. **Round 18.859 to the nearest tenth:** - Tenths place: 8 - Hundredths place: 5 (which is 5 or more, so round up) - Rounded number: $$18.9$$ 4. **Round 42.096 to the nearest hundredth:** - Hundredths place: 9 - Thousandths place: 6 (6 is more than 5, so round up) - Rounded number: $$42.10$$ 5. **Convert 3/12 into a decimal:** - Divide numerator by denominator: $$\frac{3}{12} = 0.25$$ 6. **Multiply 1.2 by 27 thousandth:** - 27 thousandth = 0.027 - Multiply: $$1.2 \times 0.027 = 0.0324$$ **Final answers:** (a) nine tenths (b) six hundredths (c) six thousandths (d) eighty-seven hundredths (e) seventeen and sixty-two hundredths (f) nine and fifty-one hundredths 8. Rounded 18.859 to nearest tenth: $$18.9$$ 9. Rounded 42.096 to nearest hundredth: $$42.10$$ 10. Decimal of 3/12: $$0.25$$ 11. Product of 1.2 and 0.027: $$0.0324$$