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

Attempt · Explain · Animate

Grade 3 practice chapters

1. Grade 3 · Chapter 701

   Combine hundreds and regroup the total: first three-digit amount: 535; second amount: 171

   At a classroom activity, a first group contains 535 counters and another group brings 171 counters. Find the total after both groups join, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

2. Grade 3 · Chapter 702

   Choose the nearer hundred: original count: 165; rounding place: 100

   A report for a classroom activity contains a count of 165 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

3. Grade 3 · Chapter 703

   Cross an hour boundary with minutes: starting whole hour: 11; duration: 145 minutes

   An activity at a classroom activity starts at 11:00 and runs for 145 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

4. Grade 3 · Chapter 704

   Read totals and differences from bars: category a: 22; category b: 31; category c: 53

   A survey display at a classroom activity records three category counts: 22 counters, 31 counters, and 53 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

5. Grade 3 · Chapter 705

   Multiply complete equal groups: rows: 9; objects in each row: 9

   A rectangular arrangement for a classroom activity has 9 rows with 9 counters in each row. Find the number of objects in the original array, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

6. Grade 3 · Chapter 706

   Count groups of a chosen size: objects available: 66; objects required in each group: 9

   At a classroom activity, 66 counters are packed in groups of exactly 9. 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 707

   Count equal fractional pieces: selected pieces: 5; equal pieces in each whole: 8

   A supply strip for a classroom activity is cut into 8 equal pieces per whole, and 5 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 708

   Build area with equal square units: rows of unit squares: 7; squares in each row: 8

   A rectangular arrangement for a classroom activity has 7 rows with 8 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 709

   Separate covering from boundary distance: width: 10; height: 2

   A rectangular plan for a classroom activity measures 10 units across and 2 units high. Find the original perimeter and area, explain the calculation, and check a related question.

   Question · Worked solution · Animated example

   Open practice chapter

10. Grade 3 · Chapter 710

    Combine hundreds and regroup the total: first three-digit amount: 439; second amount: 102

    At a classroom activity, a first group contains 439 counters and another group brings 102 counters. Find the total after both groups join, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

11. Grade 3 · Chapter 711

    Choose the nearer hundred: original count: 382; rounding place: 10

    A report for a classroom activity contains a count of 382 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

12. Grade 3 · Chapter 712

    Cross an hour boundary with minutes: starting whole hour: 4; duration: 80 minutes

    An activity at a classroom activity starts at 4:00 and runs for 80 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

13. Grade 3 · Chapter 713

    Read totals and differences from bars: category a: 3; category b: 13; category c: 30

    A survey display at a classroom activity records three category counts: 3 counters, 13 counters, and 30 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

14. Grade 3 · Chapter 714

    Multiply complete equal groups: rows: 10; objects in each row: 5

    A rectangular arrangement for a classroom activity has 10 rows with 5 counters in each row. Find the number of objects in the original array, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

15. Grade 3 · Chapter 715

    Count groups of a chosen size: objects available: 23; objects required in each group: 6

    At a classroom activity, 23 counters are packed in groups of exactly 6. 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

16. Grade 3 · Chapter 716

    Build area with equal square units: rows of unit squares: 4; squares in each row: 4

    A rectangular arrangement for a classroom activity has 4 rows with 4 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

17. Grade 3 · Chapter 717

    Separate covering from boundary distance: width: 14; height: 11

    A rectangular plan for a classroom activity measures 14 units across and 11 units high. Find the original perimeter and area, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

18. Grade 3 · Chapter 718

    Combine hundreds and regroup the total: first three-digit amount: 343; second amount: 33

    At a classroom activity, a first group contains 343 counters and another group brings 33 counters. Find the total after both groups join, explain the calculation, and check a related question.

    Question · Worked solution · Animated example

    Open practice chapter

19. Grade 3 · Chapter 719

    Choose the nearer hundred: original count: 599; rounding place: 100

    A report for a classroom activity contains a count of 599 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

20. Grade 3 · Chapter 720

    Cross an hour boundary with minutes: starting whole hour: 9; duration: 10 minutes

    An activity at a classroom activity starts at 9:00 and runs for 10 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