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4th grade · Math · Unit 1 of 15

Numbers to 10,000

Place value, compare and round

What your child practices

Reading, writing and comparing numbers up to 10,000: place value, expanded form, number lines, ordering and rounding.

Arizona Academic Standards learning standard: 4.NBT.A.1; 4.NBT.A.2; 4.NBT.A.3 · reading, comparing and rounding multi-digit whole numbers with place value

How we explain it

Children can open this short lesson before they practice.

  1. To round, look at the digit just to the right of your place.
  2. If it is 5 or more, round up. If it is 4 or less, stay.
  3. Change every digit after your place to 0.

Example: Round 4,763 to the nearest hundred. The hundreds digit is 7. Look at the tens digit: 6. 6 is 5 or more, so round up to 8 hundreds. 4,800. Answer: 4,800

Numbers to 10,000 in Arizona

In the Arizona Academic Standards, this is unit 1 of 15 in 4th grade Math, before Add & Subtract.

Gradelings describes a child's practice on this unit as Beginning, Approaching, Meeting or Exceeding (Four practice steps). That reflects practice, not a report-card mark: the teacher decides the mark.

Source: Arizona Department of Education

Sample questions

A taste of this unit. In the app, questions change every time and get easier or harder to match your child.

  1. Question 1

    What number goes where the ? is?

    700075008000?
    • 7100
    • 7400
    • 7300
    • 7200

  2. Question 2

    What is 100 less than 9097?

    9097 − 100 = ?

    answer box

  3. Question 3

    Which sign goes in the box?

    2403 2893

    • <
    • =
    • >

  4. Question 4

    Write this number with digits: eight thousand three hundred five.

    answer box

  5. Question 5

    What number is this?

    3000 + 200 + 50 + 2

    answer box

  6. Question 6

    Put the numbers in order from least to greatest.

    • 9935
    • 9584
    • 9867
    • 9400

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