10,000 ways to practice.
One idea at a time.

Attempt · Explain · Animate

Grade 3 practice chapters

1. Grade 3 · Chapter 581

   Build area with equal square units: rows of unit squares: 8; squares in each row: 9

   A rectangular arrangement for a classroom activity has 8 rows with 9 unit squares in each row. Find the area of the original rectangle in square units, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

2. Grade 3 · Chapter 582

   Combine hundreds and regroup the total: first three-digit amount: 669; second amount: 10

   At a classroom activity, a first group contains 669 counters and another group brings 10 counters. Find the total after both groups join, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

3. Grade 3 · Chapter 583

   Choose the nearer hundred: original count: 759; rounding place: 10

   A report for a classroom activity contains a count of 759 and asks for rounding to the nearest 10. Find the rounded report using the stated place and upward midpoint rule, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

4. Grade 3 · Chapter 584

   Cross an hour boundary with minutes: starting whole hour: 3; duration: 155 minutes

   An activity at a classroom activity starts at 3:00 and runs for 155 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

5. Grade 3 · Chapter 585

   Read totals and differences from bars: category a: 21; category b: 19; category c: 60

   A survey display at a classroom activity records three category counts: 21 counters, 19 counters, and 60 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

6. Grade 3 · Chapter 586

   Count groups of a chosen size: objects available: 54; objects required in each group: 10

   At a classroom activity, 54 counters are packed in groups of exactly 10. Find the number of complete groups and the remainder, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

7. Grade 3 · Chapter 587

   Count equal fractional pieces: selected pieces: 2; equal pieces in each whole: 6

   A supply strip for a classroom activity is cut into 6 equal pieces per whole, and 2 pieces are selected. Find the original selected amount as an exact fraction, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

8. Grade 3 · Chapter 588

   Build area with equal square units: rows of unit squares: 5; squares in each row: 5

   A rectangular arrangement for a classroom activity has 5 rows with 5 unit squares in each row. Find the area of the original rectangle in square units, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

9. Grade 3 · Chapter 589

   Combine hundreds and regroup the total: first three-digit amount: 573; second amount: 122

   At a classroom activity, a first group contains 573 counters and another group brings 122 counters. Find the total after both groups join, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

10. Grade 3 · Chapter 590

    Choose the nearer hundred: original count: 976; rounding place: 100

    A report for a classroom activity contains a count of 976 and asks for rounding to the nearest 100. Find the rounded report using the stated place and upward midpoint rule, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

11. Grade 3 · Chapter 591

    Cross an hour boundary with minutes: starting whole hour: 8; duration: 85 minutes

    An activity at a classroom activity starts at 8:00 and runs for 85 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

12. Grade 3 · Chapter 592

    Read totals and differences from bars: category a: 2; category b: 1; category c: 37

    A survey display at a classroom activity records three category counts: 2 counters, 1 counter, and 37 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

13. Grade 3 · Chapter 593

    Count groups of a chosen size: objects available: 11; objects required in each group: 7

    At a classroom activity, 11 counters are packed in groups of exactly 7. Find the number of complete groups and the remainder, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

14. Grade 3 · Chapter 594

    Count equal fractional pieces: selected pieces: 11; equal pieces in each whole: 8

    A supply strip for a classroom activity is cut into 8 equal pieces per whole, and 11 pieces are selected. Find the original selected amount as an exact fraction, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

15. Grade 3 · Chapter 595

    Build area with equal square units: rows of unit squares: 2; squares in each row: 1

    A rectangular arrangement for a classroom activity has 2 rows with 1 unit square in each row. Find the area of the original rectangle in square units, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

16. Grade 3 · Chapter 596

    Separate covering from boundary distance: width: 10; height: 13

    A rectangular plan for a classroom activity measures 10 units across and 13 units high. Find the original perimeter and area, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

17. Grade 3 · Chapter 597

    Combine hundreds and regroup the total: first three-digit amount: 477; second amount: 53

    At a classroom activity, a first group contains 477 counters and another group brings 53 counters. Find the total after both groups join, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

18. Grade 3 · Chapter 598

    Choose the nearer hundred: original count: 293; rounding place: 100

    A report for a classroom activity contains a count of 293 and asks for rounding to the nearest 100. Find the rounded report using the stated place and upward midpoint rule, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

19. Grade 3 · Chapter 599

    Cross an hour boundary with minutes: starting whole hour: 1; duration: 20 minutes

    An activity at a classroom activity starts at 1:00 and runs for 20 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

20. Grade 3 · Chapter 600

    Read totals and differences from bars: category a: 44; category b: 43; category c: 13

    A survey display at a classroom activity records three category counts: 44 counters, 43 counters, and 13 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter