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McGraw-Hill Math Grade 7 Answer Key Lesson 19.2 Metric Units of Liquid Volume
Exercises
CALCULATE
Question 1.
2.1 L = __________ mL
Answer:
2.1 L is equal to 2100 mL .
Explanation:
Conversion:
1 L = 1,000 mL
2.1 L = ?? mL
=> 1 × ?? = 1,000 × 2.1
=> ?? = 2100 mL .
Question 2.
1700 L = _________ kL
Answer:
1,700 L is equal to 1.7 kL.
Explanation:
Conversion:
1 kL = 1,000 L.
?? kL = 1,700 L
=> 1 × 1,700 = 1,000 × ??
=> 1,700 ÷ 1,000 = ??
=> 1.7 kL = ??
Question 3.
3.456 L = ____________ mL
Answer:
3.456 L is equal to 3,456 mL.
Explanation:
Conversion:
1 L = 1,000 mL.
3.456 L = ?? mL
=> 1 × ?? = 1,000 × 3.456
=> ?? = 3,456 mL.
Question 4.
350 L = ___________ mL
Answer:
350 L is equal to 3,50,000 mL.
Explanation:
Conversion:
1 L = 1,000 mL.
350 L = ?? mL.
=> 1 × ?? = 1,000 × 350
=> ?? = 3,50,000 mL.
Question 5.
3.901 kL = ____________ mL
Answer:
3.901 kL is equal to 39,01,000 mL.
Explanation:
Conversion:
1 kL = 10,00,000 mL.
3.901 kL = ?? mL
=> 1 × ?? = 10,00,000 × 3.901
=> ?? = 39,01,000 mL.
Question 6.
161.34 mL = ____________ L
Answer:
161.34 mL is equal to 0.16134 L.
Explanation:
Conversion:
1 L = 1,000 mL.
?? L=Â 161.34 mL
=> 1 × 161.34 = 1,000 × ??
=> 161.34 ÷ 1,000 = ??
=> 0.16134 L = ??
Question 7.
767 mL = ____________ kL
Answer:
767 mL is equal to 0.000767 kL.
Explanation:
Conversion:
1 kL = 10,00,000 ml
?? kL = 767 mL
=> 1 × 767 = 10,00,000 × ??
=> 767 ÷ 10,00,000 = ??
=> 0.000767 kL = ??
Question 8.
1276 mL + 487 L = _____________ L
Answer:
Sum of 1276 mL and 487 L , we get 488.276 L.
Explanation:
Conversion:
1 L = 1,000 mL.
?? L= 1,276 mL
=> 1 × 1,276 = 1,000 × ??
=> 1,276 ÷ 1,000 = ??
=> 1.276 L = ??
1.276 l + 487 L = 488.276 L.
Question 9.
2 kL + 135 L = ___________ L
Answer:
Sum of 2 kL and 135 L, we get 2,135 L.
Explanation:
Conversion:
1 kL = 1,000 L.
2 kL = ?? L
=> 1 × ?? = 1,000 × 2
=> ?? = 2,000 L.
2,000 L + 135 L = 2,135 L.
Question 10.
71 mL + 141 L = ___________ kL
Answer:
Sum of 71 mL and 141 L, we get 1,41,000.000071 kL.
Explanation:
Conversion:
1 kL = 10,00,000 mL.
?? kL = 71 mL.
=> 1 × 71 = 10,00,000 × ??
=> 71 ÷ 10,00,000 = ??
=> 0.000071 kL.
1 kL = 1,000 L.
141 L = ?? L
=> 1 × ?? = 1,000 × 141
=> ?? = 1,41,000 L.
0.000071 kL + 1,41,000 L = 1,41,000.000071 kL.
Question 11.
835 kL + 4500 L = ___________ kL
Answer:
Sum of 835 kL and 4500 L, we get 839.5 kL.
Explanation:
Conversion:
1 kL = 1,000 L.
?? kL = 4,500 L
=> 1 × 4,500 = 1,000 × ??
=> 4,500 ÷ 1,000 = ??
=> 4.5 kL.
835 kL + 4.5 kL = 839.5 kL.
Question 12.
562 kL + 5213 L = _____________ kL
Answer:
Sum of 562 kL and 5213 L, we get 567.213 kL.
Explanation:
Conversion:
1 kL = 1,000 L.
?? kL = 5,213 L
=> 1 × 5,213 = 1,000 × ??
=> 5,213 ÷ 1,000 = ??
=> 5.213 kL = ??
562 kL + 5.213 kL = 567.213 kL.
Question 13.
423.98 L + 875.23 mL = ____________ L
Answer:
Sum of 423.98 L and 0.87523 L = 424.85523 L.
Explanation:
Conversion:
1 L = 1,000 mL.
?? L = 875.23 ml
=> 1 × 875.23 = 1,000 × ??
=> 875.23 ÷ 1,000 = ??
=> 0.87523 L = ??
423.98 L + 0.87523 L = 424.85523 L.
Question 14.
141.3 L + 43.2 mL = ____________ mL
Answer:
Sum of 141.3 L and 43.2 mL, we get 1,41,343.2 mL.
Explanation:
Conversion:
1 L = 1,000 mL.
141.3 L = ?? mL
=> 1 × ?? = 1,000 × 141.3
=> ?? = 1,41,300 mL.
1,41,300 mL + 43.2 mL = 1,41,343.2 mL.
Question 15.
A \(\frac{4}{3}\) liter bottle of water is a common size. How many of these bottles of water would it take to fill a 20-liter container?
Answer:
Number of bottles of water would it take to fill a 20-liter container = 15.
Explanation:
Number of liter bottle of water is a common size = \(\frac{4}{3}\)
Number of liters of container = 20.
Number of bottles of water would it take to fill a 20-liter container = Number of liters of container ÷ Number of liter bottle of water is a common size
= 20 ÷ \(\frac{4}{3}\)
= 20 × \(\frac{3}{4}\)
= 5 × \(\frac{3}{1}\)
= 15.
Question 16.
If the reservoir has 200,000,000,000 centiliters of water in it, how many kiloliters does it contain?
Answer:
Number of kiloliters does it contain =
Explanation:
Number of centiliters of water reservoir has = 200,000,000,000.
Number of kiloliters does it contain = 20,00,000.
Conversion:
1 kiloliters = 1,00,000 centiliters.
?? kiloliters = 200,000,000,000 centiliters.
=> 1 × 200,000,000,000 = 1,00,000 × ??
=> 200,000,000,000 ÷ 1,00,000 = ??
=> 20,00,000 kiloliters = ??
Question 17.
If you are providing beverages for 25 students and family members at the school outing and each person expects to drink 1,500 centiliters, how many liters of beverages will you need?
Answer:
Number of liters of beverages will you need = 37.5.
Explanation:
Number of beverages are provided to students and family members at the school outing = 25.
Number of centiliters each person expects to drink = 1,500.
Number of centiliters of beverages will you need = Number of beverages are provided to students and family members at the school outing × Number of centiliters each person expects to drink
= 25 × 1,500
= 37,500.
Number of liters of beverages will you need =
Conversion:
1 L = 1,000 centiliters.
?? L = 37,500 centiliters
=> 1 × 37,500 = 1,000 × ??
=> 37,500 ÷ 1,000 = ??
=> 37.5 L = ??
Question 18.
If an aquarium holds 600 liters of water, and each cup of water holds 25 milliliters, how many cups of water does the aquarium hold?
Answer:
Number of cups of water does the aquarium hold = 24.
Explanation:
Number of liters of water an aquarium holds = 600.
Number of milliliters each cup of water holds = 25.
Number of cups of water does the aquarium hold = Number of liters of water an aquarium holds ÷ Number of milliliters each cup of water holds
= 600 ÷ 25
= 24.