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Grade 3 practice chapters

1. Grade 3 · Chapter 21

   Choose the nearer hundred: original count: 933; rounding place: 100

   A report for a classroom activity contains a count of 933 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.

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2. Grade 3 · Chapter 22

   Cross an hour boundary with minutes: starting whole hour: 5; duration: 140 minutes

   An activity at a classroom activity starts at 5:00 and runs for 140 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

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3. Grade 3 · Chapter 23

   Read totals and differences from bars: category a: 24; category b: 32; category c: 15

   A survey display at a classroom activity records three category counts: 24 counters, 32 counters, and 15 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.

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4. Grade 3 · Chapter 24

   Multiply complete equal groups: rows: 9; objects in each row: 10

   A rectangular arrangement for a classroom activity has 9 rows with 10 counters in each row. Find the number of objects in the original array, explain the calculation, and check a related question.

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5. Grade 3 · Chapter 25

   Count groups of a chosen size: objects available: 8; objects required in each group: 8

   At a classroom activity, 8 counters are packed in groups of exactly 8. Find the number of complete groups and the remainder, explain the calculation, and check a related question.

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6. Grade 3 · Chapter 26

   Count equal fractional pieces: selected pieces: 6; equal pieces in each whole: 8

   A supply strip for a classroom activity is cut into 8 equal pieces per whole, and 6 pieces are selected. Find the original selected amount as an exact fraction, explain the calculation, and check a related question.

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7. Grade 3 · Chapter 27

   Build area with equal square units: rows of unit squares: 7; squares in each row: 11

   A rectangular arrangement for a classroom activity has 7 rows with 11 unit squares in each row. Find the area of the original rectangle in square units, explain the calculation, and check a related question.

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8. Grade 3 · Chapter 28

   Combine hundreds and regroup the total: first three-digit amount: 667; second amount: 170

   At a classroom activity, a first group contains 667 counters and another group brings 170 counters. Find the total after both groups join, explain the calculation, and check a related question.

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9. Grade 3 · Chapter 29

   Choose the nearer hundred: original count: 250; rounding place: 100

   A report for a classroom activity contains a count of 250 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.

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10. Grade 3 · Chapter 30

    Cross an hour boundary with minutes: starting whole hour: 10; duration: 70 minutes

    An activity at a classroom activity starts at 10:00 and runs for 70 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

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11. Grade 3 · Chapter 31

    Read totals and differences from bars: category a: 5; category b: 14; category c: 53

    A survey display at a classroom activity records three category counts: 5 counters, 14 counters, and 53 counters. Find the total count and the largest and smallest category counts, explain the calculation, and check a related question.

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12. Grade 3 · Chapter 32

    Multiply complete equal groups: rows: 10; objects in each row: 6

    A rectangular arrangement for a classroom activity has 10 rows with 6 counters in each row. Find the number of objects in the original array, explain the calculation, and check a related question.

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13. Grade 3 · Chapter 33

    Count groups of a chosen size: objects available: 65; objects required in each group: 4

    At a classroom activity, 65 counters are packed in groups of exactly 4. Find the number of complete groups and the remainder, explain the calculation, and check a related question.

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14. Grade 3 · Chapter 34

    Count equal fractional pieces: selected pieces: 4; equal pieces in each whole: 4

    A supply strip for a classroom activity is cut into 4 equal pieces per whole, and 4 pieces are selected. Find the original selected amount as an exact fraction, explain the calculation, and check a related question.

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15. Grade 3 · Chapter 35

    Subdivide quarters without changing them: shaded quarters: 3; smaller pieces per quarter: 6

    At a classroom activity, 3/4 of a strip is selected and every quarter is divided into 6 smaller equal pieces. Find the selected-piece count and total-piece count after the stated subdivision, explain the calculation, and check a related question.

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16. Grade 3 · Chapter 36

    Build area with equal square units: rows of unit squares: 4; squares in each row: 7

    A rectangular arrangement for a classroom activity has 4 rows with 7 unit squares in each row. Find the area of the original rectangle in square units, explain the calculation, and check a related question.

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17. Grade 3 · Chapter 37

    Separate covering from boundary distance: width: 14; height: 2

    A rectangular plan for a classroom activity measures 14 units across and 2 units high. Find the original perimeter and area, explain the calculation, and check a related question.

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18. Grade 3 · Chapter 38

    Combine hundreds and regroup the total: first three-digit amount: 571; second amount: 101

    At a classroom activity, a first group contains 571 counters and another group brings 101 counters. Find the total after both groups join, explain the calculation, and check a related question.

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19. Grade 3 · Chapter 39

    Choose the nearer hundred: original count: 467; rounding place: 10

    A report for a classroom activity contains a count of 467 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.

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20. Grade 3 · Chapter 40

    Cross an hour boundary with minutes: starting whole hour: 3; duration: 5 minutes

    An activity at a classroom activity starts at 3:00 and runs for 5 minutes. Find the clock reading at the planned end, explain the calculation, and check a related question.

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