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3A · Chapter 2 · Practice

Chapter practice examination

This original untimed public practice examination is not a secure school or placement test.

This original untimed public practice examination is not a secure school or placement test. No name, account, or answer is transmitted to any server.

Assessment · 22 questions

Problems

Try the questions first. The complete answer key is provided separately to parents.

Check your work: Finish the problems first, then ask a parent or tutor to review them with the separate answer-key copy.

  1. A1

    Which is greater: 500−203 or 500−197? By how much?

  2. A2

    Add 1,963 + 435. Show a place-value breakdown.

  3. A3

    A class starts with 214 pencils, adds 86, then gives away 125. Find the amount left.

  4. A4

    Why is 607−299 the same as 608−300?

  5. A5

    A school library has 520 books. 100 are on the front shelf. How many are elsewhere?

  6. A6

    Find 99 + 383 using compensation.

  7. A7

    Two collections contain 70 items altogether. One has 10 more than the other. How many are in EACH collection?

  8. A8

    Invent an addition problem with answer 1,000 using 398 as one addend. State the other.

  9. A9

    Nina has 54 tokens and loses 19, then receives 31. Explain why the result is greater than 54.

  10. A10

    Jules has 48 more cards than Ari. Jules has 132 cards. How many does Ari have?

  11. A11

    A student changes 498+147 to 500+147 but reports 647. Explain the needed correction.

  12. A12

    Two boxes hold 94 crayons together. One holds 16 more than the other. Find both.

  13. A13

    Use equal adjustment to find 389 − 99.

  14. A14

    Why can a sum be solved by adding tens before hundreds, without changing the answer?

  15. A15

    Find 2,554 − 331 by breaking apart the amount subtracted.

  16. A16

    Leo collected 235 stamps. Mina collected 20 more than Leo. How many does Mina have?

  17. A17

    A gardener bought 195 seedlings on Monday and 208 on Tuesday. Without column arithmetic, give an exact total.

  18. A18

    Two jars hold 120 marbles together. The larger jar has 80. How many more are in the larger jar?

  19. A19

    A shop begins with 250 pencils, receives 80, then sells 10. How many pencils remain?

  20. A20

    Calculate 1,113 − 98 by using a nearby hundred.

  21. A21

    What must be added to 58 to make 100?

  22. A22

    At a school 256 students arrive; 79 leave, then 46 arrive. How many are present?

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