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Volume and Mass

Grade 3 · Geometry · Worksheet 1

  1. Noah is helping his teacher set up a science station. They need 15 liters of water for an experiment. Noah already brought a 5-liter jug of water to the station. How many more liters of water do they need to reach 15 liters? Answer: ______________
  2. 64 × 7 = ? Answer: ______________
  3. A rectangular garden is drawn with a length of 12 meters and a width of 8 meters. What is the perimeter of the garden?
    Answer: ______________
  4. Tane is helping in the kitchen. A recipe calls for a total of 11 kilograms of flour. Tane has already poured 7 kilograms into the mixing bowl. How many more kilograms of flour does Tane need to add? Answer: ______________
  5. 315 + 267 = ? Answer: ______________
  6. A rectangular fish tank is drawn with water level markings on the side. The tank is 5 liters tall and 3 liters wide when filled. How many liters of water are needed to completely fill the tank? Answer: ______________
  7. Noah is helping his teacher set up a science station. They need 15 liters of water for an experiment. Noah has already brought 8 liters from the sink. How many more liters of water does Noah need to bring? Answer: ______________
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Answer Key & Explanations

Volume and Mass · Grade 3 · Worksheet 1

  1. Noah is helping his teacher set up a science station. They need 15 liters of water for an experiment. Noah already brought a 5-liter jug of water to the station. How many more liters of water do they need to reach 15 liters? Answer: 10 Solution: The total amount of water needed is 15 liters. Noah already brought 5 liters. To find how many more liters are needed, subtract the amount already brought from the total needed: 15 - 5 = 10.
    Full step-by-step solution

    Step 1: The total amount of water needed is 15 liters. Step 2: Noah already brought 5 liters. Step 3: To find how many more liters are needed, subtract the amount already brought from the total needed: 15 - 5 = 10. The answer is 10 liters.

  2. 64 × 7 = ? Answer: 448 Solution: Write the multiplication: 64 × 7 Multiply the ones place: 4 × 7 = 28. Write down the 8 and carry over the 2. Multiply the tens place: 6 × 7 = 42.
    Full step-by-step solution

    Step 1: Write the multiplication: 64 × 7 Step 2: Multiply the ones place: 4 × 7 = 28. Write down the 8 and carry over the 2. Step 3: Multiply the tens place: 6 × 7 = 42. Step 4: Add the carried-over number: 42 + 2 = 44. Step 5: Write the 44 in front of the 8, giving 448. The final answer is 448.

  3. A rectangular garden is drawn with a length of 12 meters and a width of 8 meters. What is the perimeter of the garden? Answer: 40 meters Solution: Identify the lengths of all four sides. A rectangle has two sides of length 12 meters and two sides of length 8 meters.
    Full step-by-step solution

    Step 1: Identify the lengths of all four sides. A rectangle has two sides of length 12 meters and two sides of length 8 meters. Step 2: Add all four sides together: 12 + 8 + 12 + 8 Step 3: Calculate step by step: 12 + 8 = 20, then 20 + 12 = 32, then 32 + 8 = 40 Step 4: The perimeter is 40 meters.

  4. Tane is helping in the kitchen. A recipe calls for a total of 11 kilograms of flour. Tane has already poured 7 kilograms into the mixing bowl. How many more kilograms of flour does Tane need to add? Answer: 4 Solution: The recipe needs 11 kilograms of flour in total. Tane has already added 7 kilograms. To find how much more is needed, subtract: 11 - 7 = 4.
    Full step-by-step solution

    Step 1: The recipe needs 11 kilograms of flour in total. Step 2: Tane has already added 7 kilograms. Step 3: To find how much more is needed, subtract: 11 - 7 = 4. The answer is 4 kilograms.

  5. 315 + 267 = ? Answer: 582 Solution: Write the numbers vertically, aligning by place value: 315 + 267 Add the ones: 5 + 7 = 12. Write 2 in the ones place and regroup 1 to the tens place. Add the tens: 1 + 6 + 1 (regrouped) = 8.
    Full step-by-step solution

    Step 1: Write the numbers vertically, aligning by place value: 315 + 267 Step 2: Add the ones: 5 + 7 = 12. Write 2 in the ones place and regroup 1 to the tens place. Step 3: Add the tens: 1 + 6 + 1 (regrouped) = 8. Write 8 in the tens place. Step 4: Add the hundreds: 3 + 2 = 5. Write 5 in the hundreds place. The answer is 582.

  6. A rectangular fish tank is drawn with water level markings on the side. The tank is 5 liters tall and 3 liters wide when filled. How many liters of water are needed to completely fill the tank? Answer: 15 Solution: The tank is 5 liters tall and 3 liters wide To find the total liters, multiply the height by the width 5 × 3 = 15 The tank needs 15 liters of water to be completely filled The answer is 15.
    Full step-by-step solution

    Step 1: The tank is 5 liters tall and 3 liters wide Step 2: To find the total liters, multiply the height by the width Step 3: 5 × 3 = 15 Step 4: The tank needs 15 liters of water to be completely filled The answer is 15.

  7. Noah is helping his teacher set up a science station. They need 15 liters of water for an experiment. Noah has already brought 8 liters from the sink. How many more liters of water does Noah need to bring? Answer: 7 Solution: The total amount of water needed is 15 liters. The amount of water Noah has already brought is 8 liters. To find out how much more is needed, subtract the amount he has from the total amount needed: 15 - 8.
    Full step-by-step solution

    Step 1: The total amount of water needed is 15 liters. Step 2: The amount of water Noah has already brought is 8 liters. Step 3: To find out how much more is needed, subtract the amount he has from the total amount needed: 15 - 8. Step 4: 15 - 8 = 7. The answer is 7 liters.